Perez left Friday night's loss to the Oakland Athletics with a left elbow injury that manager John Gibbons said Saturday could be serious. Gibbons didn't have a full evaluation because Perez must wait for the swelling to go down before travelling to Florida to have the elbow examined.
The 34-year-old left-hander is 1-3 with a 3.69 ERA in 19 appearances this season for Toronto. He has spent most of his professional career in the minor leagues.
Storey, a 27-year-old righty, appeared in two games this season, pitching 3 2/3 innings with a 7.36 ERA. Gibbons envisions Storey as a long reliever this time around, calling him a "strike-thrower."
Storey is available for Saturday afternoon's game against Oakland.