Nationals pitcher Stephen Strasburg has been scratched with a tight forearm, according to the Washington Times. 

Strasburg noticed the soreness while playing catch Thursday, and was scratched. Manager Davey Johnson was adament that this soreness is different than what Strasburg felt prior to having Tommy John surgery. Johnson said concern was low, and it was recommend Strasburg medicate and take time off.

Strasburg has been working on a new pitch, which Johnson believes may have led to the injury. Johnson would not reveal what pitch Strasburg was working on. Strasburg has a 2.96 ERA in 170 innings.