Chang Redux: US man employs underhand serves at French Open

Jared Donaldson, of the U.S, returns the ball to Bulgaria's Grigor Dimitrov during their second round match of the French Open tennis tournament at the Roland Garros stadium, Wednesday, May 30, 2018 in Paris. (AP Photo/Thibault Camus)

PARIS — A young American man tried an underhand serve while cramping during a five-setter at the French Open. Hmm. Seen that before, haven’t we?