ALAMEDA (AP) — Oakland Raiders offensive coordinator Bill Musgrave plans to have rookie Clive Walford watch footage of a few other tight ends in the NFL this offseason. That list will almost surely include San Diego’s Antonio Gates, the eight-time Pro Bowl tight end who Walford will get a firsthand look at this week when the Raiders play the Chargers. For now, however, Oakland’s coaches only want Walford to focus on continuing to catch up with the rest of the offense after the third-round draft pick missed large chunks of training camp with a variety of injuries.