The Blue Jays optioned Estrada to Triple-A Buffalo on Friday.
With Paul Sewald reporting to the team, Estrada will head back to the minors after being with the team for 24 hours. Estrada has appeared in eight games out of the Toronto bullpen this season, posting a 5.54 ERA, 1.39 WHIP and 9:10 K:BB across 13 innings.