Baltimore Orioles left-hander Brian Matusz was ejected in the 12th inning of Saturday's 1-0 loss to the Miami Marlins after umpires discovered a foreign substance on his non-throwing arm.
Matusz was in his first inning of work and had already retired Justin Bour and J.T. Realmuto when new Marlins manager Dan Jennings emerged from the dugout to request that Matusz's right arm be checked for the substance. Home plate umpire Jordan Baker ask crew chief Paul Emmel complied and quickly discovered the substance. Matusz was then immediately ejected.