Jansen (hamstring) wasn't running at 100 percent recently, Arden Zwelling of Sportsnet.ca reports.

EDGE Analysis

The Blue Jays were optimistic last week that Jansen was close to returning from the injured list, but he's still having some issues running at full speed. The catcher is slated to run the bases in Buffalo on Thursday, and the team could have a better idea of his status based on his intensity.