The upshot of the Heat’s summer-league victory Monday night against the Celtics was that meaningful boxes were checked off.

Boston Celtics head coach Joe Mazzulla had a humorous reaction to Jordan Walsh's Summer League ejection in a win over the Heat.

LAS VEGAS — Jordan Walsh called his ejection Monday against the Heat a “rookie mistake.” His coach, Joe Mazzulla, watching from high in the bleachers of Cox Pavilion with his family, texted his young swingman and said he “loved” the fire.

Jordan Walsh was ejected from Monday’s Celtics Summer League game, cutting short his best performance of the tournament.