World No. 1 Serena Williams acknowledges the crowd after winning her match against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden in Indian Wells, Calif.
Charls Baus/CSM /LANDOV
Serena Williams celebrates after defeating Maria Sharapova of Russia in their women's singles final at the Australian Open tennis championship in Melbourne, Australia on Saturday.
Serena Williams holds up the championship trophy after defeating Victoria Azarenka, of Belarus, during the women's singles final of the 2013 U.S. Open tennis tournament on Sunday in New York.
David Goldman /AP