Suppose Maria Sharapova is a Russian former professional tennis player. She reached her first Grand Slam final at the 2004 Wimbledon Championships at the age of 17, and won her first major title at the 2004 WTA Tour Championships. Throughout her career, she won a total of five Grand Slam singles titles.
Can we infer that "Maria Sharapova never won a Grand Slam singles title"? Yes, no, or maybe?