That means Redmond will miss his next turn and briefly join an overcrowded bullpen, but the decision was based on the available arms and not anything health related.
"We'll just give Redmond a little bit of a blow," Blue Jays manager John Gibbons said.
Dickey will follow Buehrle on Wednesday in Toronto, while left-hander J.A. Happ is scheduled to pitch in the series finale vs. Los Angeles. It's not immediately clear when Redmond will start again, as Toronto is also considering giving a start to Kyle Drabek, who was recently promoted from the Minor Leagues.
Redmond has a 4.40 ERA in 57 1/3 innings. He has surrendered three runs or less in all but one of his outings, but he hasn't been able to pitch more than six innings in a game.
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.