Suppose Serena Williams is an American professional tennis player and former world No. 1 in women's singles 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 (24). She is considered one of the greatest tennis players in the history of the sport.
Can we infer that "Serena Williams has never won a Grand Slam singles title."? Yes, no, or maybe?