ST. PETERSBURG, Fla. -- Rays left-hander J.P. Howell has had a setback in his rehab program for a strained left shoulder.
The reliever shut down a simulated game on Monday after 12 pitches due to discomfort in the shoulder.
Tampa Bay manager Joe Maddon said the latest development involving Howell is "no question" a concern.
It had been hoped Howell could return in late May or early June, but Maddon said there is no timetable until after the pitcher is re-evaluated by the team's medical staff.
Howell went 7-5 with 17 saves and a 2.84 ERA in 69 games last season. He has not pitched this year.