TORONTO - Toronto Blue Jays starter Shaun Marcum left Tuesday night's game against the Baltimore Orioles in the third inning with right forearm numbness.
There was no immediate word on the severity of the injury.
Marcum, who missed a month earlier this season with elbow soreness, appeared to be out of sorts in the third, lacking his trademark command.
He walked leadoff batter Juan Castro, surrendered an RBI double to Brian Roberts and then walked Nick Markakis.
Ball four prompted manager Cito Gaston and trainer George Poulis to sprint out to the mound and after a brief discussion, Marcum's night was done.
John Parrish came on in relief.