(AP Photo/Charles Krupa). Boston Celtics head coach Brad Stevens calls to his players during the first quarter of an NBA basketball game against the Milwaukee Bucks, Wednesday, Oct. 18, 2017, in Boston. (AP Photo/Tony Dejak). Boston Celtics' Gordon Hayward (20) falls as Cleveland Cavaliers' LeBron James (23) reaches for a loose ball in the first half of an NBA basketball game, Tuesday, Oct. 17, 2017, in Cleveland. Hayward broke his left ankle on a play. (AP Photo/Charles Krupa).