The news means that Morse will not be ready for the Nationals' home opener against the Reds on Thursday. Morse can swing the bat without any problems, but he continues to feel discomfort while throwing the baseball. In fact, Morse had problems throwing the ball back to shortstop Jason Martinson in yesterday's game.
According to Nationals manager Davey Johnson, Morse will get further test in the upcoming days. Johnson is not sure when Morse will return to action.
"I was hoping that it was just the cold weather, but he has also been examined by our doctor," Johnson said. "[He is] concerned about it and there will be further tests on him. Hopefully, it's nothing that serious. I don't like the fact he was swinging the bat well and he took himself out of the game because his arm was bothering him."