Turnbull (lat) tossed a 10-pitch bullpen session Monday at Citizens Bank Park, MLB.com reports.
Assuming Turnbull escaped the side session free of setbacks, he'll shift his rehab program to the Phillies' spring training facility in Clearwater, Fla. and continue building back up. At the time Turnbull was placed on the 15-day injured list June 27 with a right lat strain, manager Rob Thomson estimated that the right-hander would be sidelined for 6-to-8 weeks. Since Turnbull doesn't look as though he'll be a realistic option to return from the IL until mid-to-late August, the Phillies have already indicated that the 31-year-old probably won't have sufficient time to get stretched out for a starting role and will likely be ticketed for the bullpen.