Serena Williams' Best Moments: SI Swimsuit and Beyond

Serena Williams :: Walter Iooss Jr./SI

Serena in action at Fairmont Stadium in Arizona, where she had won the State Farm Classic the year before.

Serena on the red carpet at the Vanity Fair Oscar party in West Hollywood. That same week she underwent emergency treatment for a blood clot in her lungs.

Serena Williams :: Walter Iooss Jr./SI

Serena won seven tournaments in 2012, including the WTA Championships in Istanbul.

Serena celebrates a point during the 2007 Australian Open finals against Maria Sharapova. Williams, who was unseeded because of her World No. 81 ranking, continued on to beat Sharapova and win the tournament.

Serena Williams plays Maria Sharapova in a semifinal match at the 2015 Wimbledon Championships.

Serena Williams arrives at the 2015 Wimbledon Champions Dinner at The Guildhall in England.

Serena Williams :: Walter Iooss Jr./SI

Serena Williams plays a backhand in her semifinal victory over Madison Keys in the 2015 Australian Open. Serena would go on to defeat Maria Sharapova in the final match for her 19th grand slam singles title.

Serena kids around after winning a title in Melbourne.

Serena Williams :: Walter Iooss Jr./SI

Serena had an 18-match Grand Slam tournament winning streak snapped at the 2009 French Open.

Serena didn't lose a set in winning Wimbledon in 2010.

Serena Williams did an inpromtu split during her match against Bethanie Mattek-Sands at the 2015 U.S. Open.