Phillies manager Rob Thomson suggested Saturday that Turnbull (lat) is highly unlikely to fill a rotation spot once he's ready to return from the 15-day injured list, MLB.com reports. "It's going to be tough at this point," Thomson said when asked about bringing Turnbull back as a starter.

Turnbull had a productive six-start run for the Phillies to begin the season before shifting to the bullpen, but he moved back into the rotation in late June, when No. 5 starter Taijuan Walker landed on the shelf. His second stint in the rotation ended after just one start, as Turnbull was diagnosed with a right lat strain following his June 26 outing versus the Tigers. Given the long-term nature of the injury, Turnbull was always going to face an uphill battle making a full recovery and having enough time to get stretched back out for a starting role before the end of the season. After Turnbull experienced soreness during a recent bullpen session earlier this month, the Phillies seem to have now officially closed the door on the right-hander contributing as a starter. Thomson suggested that Turnbull isn't dealing with any major setback and is expected to get back on the mound later in the week following some extra rest as he prepares to fill a multi-inning relief role for the Phillies upon his return. The Phillies likely won't have a clear target date for Turnbulll to come off the IL until he begins a minor-league rehab assignment.