Serena Williams #102 Tennis ATP ** Exclusive 1/1 Sale NFT ** is an American professional tennis player and former world No. 1 in women's single tennis. She has won 23 Grand Slam singles titles, the most by any player in the Open Era, and the second-most of all time behind Margaret Court. The Women's Tennis Association (WTA) ranked her world No. 1 in singles on eight separate occasions between 2002 and 2017.