Raiders tight end Clive Walford missed significant portions of his rookie training camp with hamstring issues. Those ailments occurred from on-field work.
His latest setback, however, did not.
Walford suffered a knee injury during an ATV incident, FOX Sports reported on Tuesday, and will be out an indefinite period.
FOX Sports states that Walford had knee surgery already this offseason and is ahead of schedule. Recovery from a knee injury can take significant time, but Walford is expected to return at some point in training camp.
ESPN reported early this offseason that fellow tight end Mychal Rivera was available in trade due to increased responsibility for Walford, but he wasn’t moved before or during the NFL Draft.