Andrew McCutchen hit a pair of home runs as the Pirates beat the Nationals on Monday night, but the club was in no mood to celebrate.
Jason Grilli left the game in the ninth inning with forearm tightness.
Grilli entered in the ninth and gave up a two-run homer to Jayson Werth before leaving with an apparent arm injury after getting two outs.
"Pretty much he threw the ball, and his reaction was, he just grimaced a little bit," Russell Martin said. "It seemed like he was in a little bit of pain. It just looked like his forearm was bugging him. A definite blow. Hopefully it's not as severe as it can be and is just something minor."
Via Associated Press