PHOTOS: 2019 U.S. Open women’s singles final

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States walks out on to court prior to her Women's Single's final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Emilee Chinn/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada walks on the court before taking on Serena Williams of the United States during their Women's Singles final match on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Emilee Chinn/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: (L-R) Serena Williams of the United States stands alongside Bianca Andreescu of Canada before their Women's Singles final match on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of United States serves during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Meghan, Duchess of Sussex, attends the Women's Singles final match between Serena Williams of the United States and Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada returns a shot during her Women's Single's final match against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States returns a shot during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Meghan (R), Duchess of Sussex, and Anna Wintour (L) attend the Women's Singles final match between Serena Williams of the United States and Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of United States serves during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada serves during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada reacts during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Venus Williams watches the Women's Singles final match between Serena Williams of the United States and Bianca Andreescu of Canadaon day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States celebrates a point during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Spike Lee, director and producer, watches the Women's Singles final match between Serena Williams of the United States and Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Venus Williams, coach Patrick Mouratoglou, husband Alexis Ohanian, and Meghan, Duchess of Sussex, cheer for Serena Williams of the United States during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Emilee Chinn/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada reacts during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States serves during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States celebrates a point during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Emilee Chinn/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada returns a shot during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States reacts from her chair after the first set during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates set point in the first set during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Adrienne Warren performs "America the Beautiful" before the Women's Singles final match between Serena Williams of the United States and Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Mike Stobe/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Models Josephine Skriver, Cara Delevingne and Ashley Benson attend the Women's Singles final match against between Serena Williams of the United States and Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States reaches to return a backhand shot during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada returns a shot during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States reacts during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States reacts during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Emilee Chinn/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada returns a shot during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada is seen in her chair during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada reacts during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates winning match points during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates winning match point during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Emilee Chinn/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams of the United States looks on after being defeated during her Women's Singles final match against Bianca Andreescu of Canada on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates winning match point during her Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates winning the Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates winning the Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada embraces Serena Williams of the United States after winning the Women's Singles final match on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Al Bello/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada is congratulated by Serena Williams of the United States after winning the Women's Singles final match on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates winning the Women's Singles final match against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Serena Williams (C) of the United States speaks during the trophy presentation ceremony after being defeated by Bianca Andreescu (L) of Canada during their Women's Singles final match on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada celebrates with the championship trophy during the trophy presentation ceremony after winning the Women's Singles final against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu (R) of Canada celebrates with the championship trophy alongside runner up Serena Williams (L) of the United States during the trophy presentation ceremony after the Women's Singles final on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Bianca Andreescu of Canada kisses the championship trophy during the trophy presentation ceremony after winning the Women's Singles final against against Serena Williams of the United States on day thirteen of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 07, 2019 in the Queens borough of New York City. (Photo by Elsa/Getty Images)