Actress Danai Gurira (R) attends the Women's Singles Final Match between Karolina Pliskova of the Czech Republic and Angelique Kerber of Germany on Day Thirteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 10, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
Connor Dwyer At US Open
Conor Dwyer, American swimmer and gold medalist, watches as Angelique Kerber of Germany plays against Karolina Pliskova of the Czech Republic during their Women's Singles Final Match on Day Thirteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 10, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Jon Hamm At US Open
Actor Jon Hamm attends the Women's Singles Final Match between Karolina Pliskova of the Czech Republic and Angelique Kerber of Germany on Day Thirteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 10, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Terrell Owens At US Open
NFL player Terrell Owens attends the Women's Singles Final Match between Karolina Pliskova of the Czech Republic and Angelique Kerber of Germany on Day Thirteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 10, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Leonardo DiCaprio At US Open
Actor Leonardo DiCaprio attends the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Hilary Swank At US Open
Actress Hilary Swank attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Hewitt/Getty Images)
Stars At US Open
Actors Peter Sarsgaard and Ebon Moss-Bachrach, James Spader, Guest and Debra Messing attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
Bennett Miller And Sienna Miller At US Open
Director Bennett Miller and actress Sienna Miller attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Debra Messing At US Open
Actress Debra Messing attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Tony Bennett At US Open
Singer Tony Bennett attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Hewitt/Getty Images)
Karlie Kloss At US Open
Model Karlie Kloss (C) attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Heiman/Getty Images)
Ivanka Trump At US Open
Ivanka Trump attends the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
Stars At US Open
Kevin Spacey, Evan Lowenstein and Guillermo Vilas (C - lower row) attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Goodlett/Getty Images)
Lin-Manuel Miranda, David Dinkins At US Open
Playwright/Actor Lin-Manuel Miranda, Vanessa Nadal and former New York City Mayor David Dinkins attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Goodlett/Getty Images)
Anna Wintour At US Open
EIC of American Vogue Anna Wintour (R) attend the Men's Singles Final Match between Novak Djokovic of Serbia and Stan Wawrinka of Switzerland on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
Debra Messing At US Open
Debra Messing watches the first round Men's Singles match between Novak Djokovic of Serbia & Montenegro and Jerzy Janowicz of Poland on Day One of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2016 in Flushing, Queens. (Photo by Elsa/Getty Images)
Hilaria Thomas And Alec Baldwin At US Open
Hilaria Thomas and Alec Baldwin watch the first round Men's Singles match between Novak Djokovic of Serbia & Montenegro and Jerzy Janowicz of Poland on Day One of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2016 in Flushing, Queens. (Photo by Elsa/Getty Images)
David N. Dinkins At US Open
USTA Director at Large and former New York City Mayor David N. Dinkins watches the first round Men's Singles match between Novak Djokovic of Serbia & Montenegro and Jerzy Janowicz of Poland on Day One of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2016 in Flushing, Queens. . (Photo by Elsa/Getty Images)
Anna Wintour At US Open
Anna Wintour watches the first round Men's Singles match between Novak Djokovic of Serbia & Montenegro and Jerzy Janowicz of Poland on Day One of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2016 in Flushing, Queens. (Photo by Elsa/Getty Images)
Mike Tyson At US Open
Mike Tyson watches the first round Men's Singles match between Novak Djokovic of Serbia & Montenegro and Jerzy Janowicz of Poland on Day One of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2016 in Flushing, Queens. (Photo by Elsa/Getty Images)
Susan Sarandon At US Open
Susan Sarandon watches the first round Men's Singles match between Novak Djokovic of Serbia & Montenegro and Jerzy Janowicz of Poland on Day One of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2016 in Flushing, Queens. (Photo by Elsa/Getty Images)
Andre Agassi At US Open
Former tennis player Andre Agassi watches the first round Men's Singles match between Andy Murray of Great Britain and Lukas Rosol of the Czech Republic on Day Two of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 30, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Hewitt/Getty Images)
Kevin Spacey At US Open
Kevin Spacey, left, watches the first round Women's Singles match between Serena Williams of the United States and Ekaterina Makarova of Russia on Day Two of the 2016 US Open at the USTA Billie Jean King National Tennis Center on August 30, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Hewitt/Getty Images)
Beyonce At US Open
Singer Beyoncé watches the match between Serena Williams of the US Vania King of the US during their 2016 US Open women's singles match at the USTA Billie Jean King National Tennis Center on September 1, 2016 in New York. (Photo by Don Emmert/AFP/Getty Images)
Jay-Z And Beyonce At US Open
Jay-Z and Beyonce watch the second round Women's Singles match between Serena Williams of the United States and Vania King of the United States on Day Four of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 1, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)
Vanessa Williams At US Open
Vanessa Williams and Jeanne Moutoussamy-Ashe watch the fourth round Women's Singles match between Caroline Wozniacki of Denmark and Madison Keys of the United States on Day Seven of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 4, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Andy Lyons/Getty Images)
Hugh Grant At US Open
Hugh Grant and Anna Eberstein seen at USTA Billie Jean King National Tennis Center on September 4, 2016 in the Queens borough of New York City. (Photo by BBD/GC Images)
Grace Hightower At US Open
Grace Hightower, wife of Robert de Niro, watches Novak Djokovic's third-round victory on Sept. 2, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Kim Sears At US Open
Kim Sears, wife of Andy Murray, seen at the USTA Billie Jean King National Tennis Center on Sept. 3, 2016. (Photo by BBD/GC Images)
Ana Boyer Preysler At US Open
Ana Boyer Preysler, agent David Tosas, coach David Sanchez (bottom right) attend Fernando Verdasco's doubles match on Day 6 of the US Open at the USTA Billie Jean King National Tennis Center on Sept. 3, 2016 in the Queens borough of New York City. (Photo by Jean Catuffe/GC Images)
Shy'm At US Open
French singer Shy'm attends a US Open doubles match on Sept. 5, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Manolo Santana At US Open
Former tennis player Manolo Santana and his wife, Claudia Rodriguez, attend Rafael Nadal's third-round victory at the US Open on Sept. 2, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Boris Kodjoe At US Open
Actor Boris Kodjoe attends the US Open third-round victory of his friend, Serena Williams, on Sept. 3, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Carmelo Anthony At US Open
Knicks star Carmelo Anthony, Kelly Rowland of Destiny's Child and Anthony's wife, La La, attend the third-round victory of their friend, Serena Williams, on Sept. 3, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Billie Jean King At US Open
Tennis great Billie Jean King attends Day 6 of the US Open at the USTA Billie Jean King National Tennis Center on Sept. 3, 2016. (Photo by Jean Catuffe/GC Images)
Kevin Spacey At US Open
"House of Cards" star Kevin Spacey seen at the USTA Billie Jean King National Tennis Center on Sept. 3, 2016. (Photo by BBD/GC Images)
Andrea Pirlo At US Open
NYCFC star Andrea Pirlo, his two children and Valentina Baldini attend Rafael Nadal's third-round victory on Sept. 2, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Rod Laver At US Open
Tennis great Rod Laver watches countryman Nick Kyrgios of Australia play in the US Open on Sept. 3, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Sean Hannity At US Open
TV and radio personality Sean Hannity attends Day 6 of the US Open on Sept. 3, 2016, at the USTA Billie Jean King National Tennis Center. (Photo by Jean Catuffe/GC Images)
Alec Baldwin At US Open
Alec Baldwin and wife Hilaria Baldwin attend Day 6 of the US Open at USTA Billie Jean King National Tennis Center on Sept. 3, 2016. (Photo by Jean Catuffe/GC Images)
Bill Cowher At US Open
Former Pittsburgh Steelers coach Bill Cowher attends Day 6 of the US Open at the USTA Billie Jean King National Tennis Center on Sept. 3, 2016. (Photo by Jean Catuffe/GC Images)
Anna Wintour At US Open
Anna Wintour watches the fourth round Women's Singles match between Venus Williams of the United States and Karolina Pliskova of the Czech Republic on Day Eight of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 5, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Hewitt/Getty Images)
Shaquille O'Neal At US Open
Shaquille O'Neal attends the US Open women's quarterfinals match between Caroline Wozniacki and Anastasija Sevastova on Sept. 6, 2016. (Photo by Alex Goodlett/Getty Images)
Michael Bloomberg At US Open
Michael Bloomberg, former mayor of New York City (C), (L) Diana Taylor, and Georgina Bloomberg (R) attend the Men's Singles Quarterfinals match between Novak Djokovic of Serbia and Jo-Wilfried Tsonga of France on Day Nine of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 6, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Goodlett/Getty Images)
Christine Taylor, Ben Stiller And Hugh Jackman At US Open
Actors I(from left) Christine Taylor, Ben Stiller and Hugh Jackman attend the men's singles quarterfinals match between Novak Djokovic and Jo-Wilfried Tsonga on Day 9 of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 6, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Michael Reaves/Getty Images)
Tony Bennett At US Open
Singer Tony Bennett attends the Women's Singles Quarterfinals Match between Simona Halep of Romania and Serena Williams of the United States on Day Ten of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 7, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Mike Hewitt/Getty Images)