The 31-year-old veteran has appeared in just 21 games at the big league level this year, but he has earned a spot on the roster for the final five weeks of the season thanks to his recent play.
Whether it was a heads-up baserunning play to secure a victory in New York on Monday night, or a diving play up the middle the following day to save a run, McCoy has become a favorite of manager John Farrell.
"His value shows up even more now that we're carrying the extra reliever, with the ability to play both the outfield and infield," Farrell said. "He's going to get more exposure and more opportunity when guys are needing a break and certain matchups might exist. The versatility is an asset, there's no doubt.
"The offensive numbers might not tell the whole story, it's some small smaller parts of the game that really show through."
McCoy has appeared at every position for the Blue Jays during the past two years except for catcher and first base. He entered play on Wednesday hitting just .211 with one home run and six RBIs, but he provides invaluable flexibility off the bench.
With rosters expanding on Saturday, McCoy is no longer in danger of being optioned back to the Minor Leagues. That's welcome news for Toronto's most frequent flyer, who has been sent back to Triple-A Las Vegas on 10 occasions over the past two years.