Perine was diagnosed with a low-ankle sprain, likely avoiding a long-term absence, Ian Rapoport of NFL Network reports.
Reports from Sunday's practice didn't sound great, but it now seems the rookie fourth-round pick doesn't have a severe injury. Even if he isn't ready for the season opener, Perine should be available as the Jets' No. 3 running back at some point during the early portion of the campaign. Le'Veon Bell and Frank Gore are expected to handle most of the backfield snaps.