The Pirates activated Mlodzinski (shoulder) from the 15-day injured list Tuesday, Noah Hiles of the Pittsburgh Post-Gazette reports.

Mlodzinski (shoulder) will begin a rehab assignment with Triple-A Indianapolis on Tuesday, Danny Demilio of PittsburghBaseballNow.com reports.

Mlodzinksi was placed on the 15-day injured list Tuesday due to a right shoulder strain, Noah Hiles of the Pittsburgh Post-Gazette reports.

Mlodzinski will serve as the Pirates' opening pitcher in Friday's game versus the Rays, Alex Stumpf of MLB.com reports.

Mlodzinksi will start Friday's game against Colorado as an opener, Kevin Gorman of TribLive.com reports.

Mlodzinksi will start Saturday's game against the Twins in what's expected to be a bullpen day for the Pirates, Andrew Destin of the Pittsburgh Post-Gazette reports.

The Pirates recalled Mlodzinski from Triple-A Indianapolis on Wednesday.

The Pirates will call up Mlodzinksi from Triple-A Indianapolis prior to Wednesday's game against the Brewers, Jason Mackey of the Pittsburgh Post-Gazette reports.

The Pirates reinstated Mlodzinski (elbow) from the 15-day injured list Wednesday and optioned him to Triple-A Indianapolis, Noah Hiles of the Pittsburgh Post-Gazette reports.

Pirates director of sports medicine Todd Tomczyk said Monday that Mlodzinski (forearm) is slated for a live batting practice session in the coming days, Jason Mackey of the Pittsburgh Post-Gazette reports.