Suppose Serena Williams is a professional tennis player from the United States, known for her powerful and aggressive style of play. She has won 23 Grand Slam singles titles, the most by any player in the Open Era. Serena has also been ranked World No. 1 by the Women's Tennis Association multiple times throughout her career.
Can we infer that "Serena Williams has never won a Grand Slam singles title."? Yes, no, or maybe?