Taillon will start Wednesday's game against the Astros, Shi Davidi of Sportsnet.ca reports.
The Blue Jays are moving to a six-man rotation for the time being, and Taillon will figure into those plans until Spencer Arrighetti (foot) is ready to debut for the Blue Jays. In 15 starts with the Cubs this season, Taillon pitched to an ugly 5.92 ERA, 1.36 WHIP and 68:27 K:BB across 76 innings. He also surrendered 25 home runs during that span.