Sloane Stephens (born March 20, 1993) is an American tennis player. She has won four singles titles on the WTA Tour since playing as a professional.
Following a successful 2012 season in which she first reached the second week of a Grand Slam, she rose to prominence upon reaching the semifinals of the 2013 Australian Open, notably defeating Serena Williams en route. Since then, she has reached a career-high singles ranking of 11 in the world and claimed her first WTA title at the 2015 Citi Open. Wikipedia