Guerrero (knee) entered Thursday's game against the Yankees as a pinch hitter, Mike Wilner of the Toronto Star reports.
Guerrero has been out of the lineup for two consecutive games due to right knee discomfort. He had an MRI done Thursday that came back clean, which apparently gave Toronto confidence to use him off the bench. Guerrero beat out a groundball for a base hit, and his ability to run down the line is another good sign for his potential return.