Major League Baseball is reviewing Bryce Harper's confrontation with an umpire to decide whether he should be disciplined.

Harper was in the dugout when he was ejected by plate umpire Brian Knight after teammate Danny Espinosa was called out on strikes during Monday's game against the Detroit Tigers.

Moments after the ejection, pinch hitter Clint Robinson hit a tiebreaking, game-ending home run, and Harper ran onto the field with his teammates to celebrate. Harper pointed toward Knight and cursed at the umpire.

When someone is tossed from a game, he is required to leave the dugout.