Pittsburgh Steelers WR Sammie Coates (knee) underwent a knee scope last week and will miss the start of training camp, according to a source.

Free-agent QB Robert Griffin III (Browns) reportedly had a positive workout with the Los Angeles Chargers on Tuesday, July 25, although the team opted not to make an immediate move.

San Francisco 49ers LB Reuben Foster (shoulder) is on track to be a full participant for the start of training camp, according to the Sacramento Bee’s Matt Barrows.

Dallas Cowboys DE Benson Mayowa (knee) is expected to be limited at training camp as he deals with knee soreness. He did not practice Tuesday, July 25.

Detroit Lions DE Armonty Bryant (undisclosed), FS Don Carey (hamstring), OT Taylor Decker (shoulder), S Rolan Milligan (undisclosed), OT Corey Robinson (foot) and DE Jeremiah Valoaga (undisclosed) were placed on the Physically Unable to Perform list Tuesday, July 25.

Oakland Raiders LB Ben Heeney (leg) and TE Cooper Helfet (undisclosed) were placed on the Non-Football Injury list Tuesday, July 25.

Jacksonville Jaguars WR Allen Robinson’s agent has been talking to the Jaguars about a possible new deal.

Miami Dolphins WR Rashawn Scott (foot) will begin training camp on the Physically Unable to Perform list.

Miami Dolphins C Mike Pouncey (hip) could be held out of the preseason but still be available for Week 1 of the regular season, according to head coach Adam Gase. Pouncey is itching to practice, but the Dolphins are taking a cautious approach with their star center.

Baltimore Ravens RB Kenneth Dixon (knee) will be sidelined for the regular season after undergoing surgery on his medial collateral ligament Tuesday, July 25. The recovery time is expected to be four to five months.