Serena Williams

An American professional tennis player, the younger sister of Venus Williams.

Four-time Olympic champion: once in singles (2012) and three times in doubles (2000, 2008, 2012), holder of the non-calendar Grand Slam in singles and doubles, and the only player among both men and women to hold the career "Golden Slam" (which includes wins at all four Grand Slam tournaments and the Olympic Games) in singles and doubles.

Serena has won 39 Grand Slam titles: 23 in singles, 14 in doubles and 2 in mixed doubles. In terms of the number of singles titles at these tournaments, she ranks second in the history of women's tennis, behind only Margaret Smith Court.