Betances was shut down again Tuesday with a low-grade strain in his right lat, Brendan Kuty of The Newark Star-Ledger reports.
The Yankees originally viewed Betances' latest setback as nothing more than "normal soreness," but an MRI revealed Tuesday that it was worse than initially believed. It's unclear how long he's expected to be shut down for, but it's hard to be especially confident about a return date given his season-long struggles with staying healthy.