Felix Doubront threw a bullpen session on Monday. Doubront's been out since May 21 with a left shoulder strain. While a date hasn't been set for Doubront to begin a rehab assignment, manager John Farrell indicated that they'll continue to ramp up the number of pitches for the lefty. "We'll start to incorporate some simulated innings before we get him out on a date for a rehab assignment," Farrell said. Before the injury, Doubront was sporting an ERA north of 5.00, and it remains to be seen whether he'll be pitching in the rotation or bullpen once he returns.