The move to the DL is retroactive to June 21, meaning Bass will not necessarily miss a significant number of starts. Manager Bud Black certainly hopes that will be the case, though he doesn't want to push his 24-year-old too far and lose him for an extended period.
"We're encouraged by how he's feeling from his last start, but it didn't look as though he was going to be able to get back in enough time to not keep him off the DL," Black said. "I think we're better served to give him the time needed, not rush him back."
Bass, who had struggled prior to throwing five solid innings against Texas before leaving with the injury, was 2-7 with a 4.70 ERA and 72 strikeouts so far this season. He was moved into the starting rotation from the bullpen earlier this season after making just two appearances out of the 'pen.
Initially, Black and the Padres believed Bass might be able to bounce back in time to start in turn Tuesday, as he had felt similar soreness earlier in the season after his start against the Cubs on May 30 and had no trouble making his next start five days later. He was not as resilient following Wednesday's outing.
"He had the same sort of feeling during the game against the Rangers as he did against Chicago, so that gave him some hope that, 'Hey, maybe this will be OK', because it was OK in Chicago," Black said. "But when he was still sore a couple days after the Texas start, we said let's be conservative with this."
While that caution may be best in the long term, it does leave San Diego short-armed in the short-term and in need of a starter to fill Bass's slot Tuesday. Black said the team is looking inside the organization to fill that spot, though no announcement has been made.
When it is, the Padres will need to make another roster move to add that player to the squad, meaning Parrino's return to the club could be short-lived, as swapping a bat for an arm makes the most sense for San Diego's injury-riddled pitching staff. So far this season, Parrino is hitting .176 in 91 at-bats.