BALTIMORE, June 14 -- Gunnar Henderson knew exactly what it was the moment it hit him. With two outs in the ninth inning of a game the Orioles had already lost, a 93.9 mph fastball from a Padres reliever found his hip, and Henderson flung his elbow guard toward the dugout on his way to a base that no longer mattered.

He did not need to ask why. Four innings earlier Xander Bogaerts had taken a 93.5 mph sinker off the helmet from Orioles rookie Trey Gibson and left the game the next inning. Whatever the intent behind that pitch, the answer to it arrived on schedule. Ron Marinaccio drilled Henderson, the umpires huddled, and second-base umpire Chris Conroy ejected him, with Padres manager Craig Stammen tossed moments later for arguing, MLB....