OAKLAND -- Left-hander Sean Manaea is expected to throw an extended bullpen session on Saturday, which will allow the A's to gauge his progress from a shoulder strain.
Only then will they determine if he'd be bettered by a Minor League rehab start before returning to the rotation.
"What we do with him next, I'm not sure," A's manager Bob Melvin said Friday. "Could be that we send him out on a rehab game just to get a feel for how he's doing without putting the pressure on him throwing in a big league game.