Premise: Serena Jameka Williams ( born September 26 , 1981 ) is an American professional tennis player . Williams ' accomplishments and success in professional tennis have led some commentators , players , and sports writers to regard her as the greatest female tennis player of all time . Her total of 23 Grand Slam singles titles marks the record for the most Grand Slam wins by a tennis player in the Open Era , and is second on the all-time list behind Margaret Court ( 24 ) . She is also the only tennis player to have won 10 Grand Slam singles titles in two separate decades .
Hypothesis: Serena Williams plays tennis.
Label: ENTAILMENT