Waller on track to return for Week 18?

Raiders interim HC Rich Bisaccia said Monday that TE Darren Waller is expected back for Sunday night's game vs. the Chargers. We haven't seen Waller since he suffered knee and back injuries in Week 12. He was placed on the COVID list on Wednesday and remains there as of Monday night. We'll see when Waller is cleared and then what he does in practice this week.