7:53pm: The team is now calling Santana’s injury a right rotator cuff strain, Gurnick tweets.
6:43pm: Dodgers righty Dennis Santana has been diagnosed with a torn lat, manager Dave Roberts told reports including Ken Gurnick of MLB.com (Twitter links). In related moves, relievers Pat Venditte and Adam Liberatore are joining the active roster, while Brock Stewart was optioned.
Roberts also provided updates on a few other hurlers (via Gurnick; all links to Twitter). Righty Kenta Maeda is on track for a potential return next week, while southpaw reliever Tony Cingrani has been diagnosed with a rotator cuff strain that isn’t believed to be serious. As for ace Clayton Kershaw, Roberts says his ailing back is currently symptom-free, which seems a promising note at an early stage of his recocvery.
The most important news here involves Santana, the 22-year-old who was just brought up for his first MLB action. Entering the season, there was no real indication that he’d be called upon this soon to play a role in the majors. But even as he worked to a 2.54 ERA with 11.8 K/9 and 2.9 BB/9 in ten outings in the upper minors, the big league staff was beset by injuries.
It’s not known how long Santana will likely be sidelined. Roberts indicated that there’s further medical assessment to be done before that will be clear. But it seems reasonable to anticipate a fairly lengthy absence. Santana will accrue MLB service time while he’s on the disabled list. He’ll also occupy a 40-man spot unless and until he’s moved to the 60-day DL.