Suppose Serena Williams (born September 26, 1981) is an American professional tennis player and former world No. 1 in women's singles. She has won 23 Grand Slam singles titles, the most by any player in the Open Era. She was coached by her father, Richard Williams, from a young age. She is known for her powerful serve and aggressive playing style on the court.
Can we infer that "Serena Williams is a retired tennis player"? Yes, no, or maybe?