The Redmond DFA was necessitated by the fact that the 30-year-old would've needed at least a few days before he could pitch again, while the Blue Jays' bullpen needs fresh arms after five relievers split five innings of work on Monday.
"Poor Red," Blue Jays manager John Gibbons said. "We didn't know for sure if that was going to have to happen, but he kind of sensed it. But he'll find his way back."
The club recalled right-hander Scott Copeland from Triple-A Buffalo in a corresponding move.
Copeland is 3-1 with a 2.43 ERA in six starts with the Bisons this season.
Jamie Ross is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.