FILE-This May 18, 2012 file photo shows Serena Williams, of the

Download this stock image: FILE-This May 18, 2012 file photo shows Serena Williams, of the United States, returning the ball to Italy's Flavia Pennetta during their quarter final match at the Italian Open tennis tournament, in Rome. Speaking after the French Open draw Friday May 25, 2012, Williams said it would be really intense and really crazy if she manages to win the French Open a second time, 10 years after her only title at the clay-court Grand Slam tournament. (AP Photo/Alessandra Tarantino,File) - 2N9R147 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

Serena Williams: 23 Grand Slam singles titles and much more

ESPN Adds Serena vs. Venus XXIX from Indian Wells: Monday Night on ESPNEWS - ESPN Press Room U.S.

File:Serena Williams at the 2009 US Open 01.jpg - Wikipedia

Serena Williams' career in photos

Wardrobe function: Serena Williams' catsuit controversy prompts tutu retort – Orlando Sentinel

World Anti-Doping Agency breached by Russian hackers, reveals Williams sisters' and Simone Biles' medical records – New York Daily News

@ESPNTennis & US Open QFs: Serena vs. Venus XXVII Tuesday at 7 p.m. ET - ESPN Press Room U.S.

Serena Williams' career in photos

Wardrobe function: Serena Williams' catsuit controversy prompts tutu retort – Orlando Sentinel

Serena won most prize money in WTA history with staggering £72m banked - more than DOUBLE sister Venus

FILE-This May 18, 2012 file photo shows Serena Williams, of the United States, returning the ball to Italy's Flavia Pennetta during their quarter final match at the Italian Open tennis tournament, in

File:Serena Williams - Roland-Garros 2012 - 004.jpg - Wikimedia Commons

Serena Williams at Indian Wells