Stratton (knee) is slated to begin a running progression, Andrew Destin of the Pittsburgh Post-Gazette reports.

Pirates general manager Ben Cherington said Friday that Stratton (knee) still needs to show he can go through running and pitchers' fielding practice before he can be considered part of the competition for a bullpen spot, Andrew Destin of the Pittsburgh Post-Gazette reports.

Stratton (knee) is expected to be ready to pitch at the start of spring training, Noah Hiles of the Pittsburgh Post-Gazette reports.

The Pirates non-tendered Stratton (knee) on Friday, Noah Hiles of the Pittsburgh Post-Gazette reports.

Stratton is expected to be sidelined for 7-to-10 months after undergoing surgery Monday to repair a patella tendon rupture in his left knee, Alex Stumpf of MLB.com reports.

The Pirates placed Stratton (knee) on the 60-day injured list Sunday.

Stratton was carted off the field Saturday against Cincinnati with what seems to be a left knee injury after slipping and falling into the wall tracking down a wild pitch, Jason Mackey of the Pittsburgh Post-Gazette reports.

the Pirates recalled Stratton from Triple-A Indianapolis on Monday, Alex Stumpf of MLB.com reports.

The Pirates activated Stratton (triceps) from the 15-day injured list Friday.

Stratton (triceps) will continue his rehab assignment at Triple-A Indianapolis on Friday, Alex Stumpf of MLB.com reports.