Left-hander Bill Bray's groin injury could lead to Aroldis Chapman being shifted back to the bullpen.

With pitchers, groin injuries take time to heal and can lead to serious problems.

Bray missed two weeks of throwing immediately after the injury. He had to shut it down Wednesday after feeling pain in a live bullpen session.

"We thought we gave him enough time last time," Reds manager Dusty Baker said. "There comes a point when we've got to decide if there's enough time or not to get ready. We've got the luxury of three lefties in the bullpen – or potentially three lefties."

That includes Chapman.

"That's a pretty good backup plan," Baker said. "As it is, we've got six starters anyway."

The Reds have been getting Chapman prepared as a starter. He's starting today's split-squad game against the Giants in Scottsdale, in fact.

"You never have enough pitching," Baker said.