Taillon (groin) will start Monday's game against the Rockies, Stephen J. Nesbitt of the Pittsburgh Post-Gazette reports.

Taillon's start Monday marks the first appearance for the right-hander since undergoing surgery for testicular cancer about five weeks ago. He threw six innings with Triple-A Indianapolis on Wednesday in his final rehab start, allowing five runs but striking out nine and hitting 97 on the radar gun. Tyler Glasnow is headed to Indianapolis and Taillon is set to take his place in the rotation moving forward.