Suppose Serena Jameka Williams (born September 26, 1981) is an American professional tennis player and former world No. 1. The Women's Tennis Association (WTA) ranked her world No. 1 in singles on eight separate occasions between 2002 and 2017.
Can we infer that "Serena Jameka Williams was never ranked world No. 1 in singles."? Yes, no, or maybe?