• Alex Barron practiced Tuesday at left tackle for the Oakland Raiders in place of Jared Veldheer, who has an arm injury. Barron entered camp as a long shot to make the team, but he has had a good camp and could even start at right tackle. Veldheer is getting an MRI on his triceps. He is one of the Raiders’ better players. They need him to be healthy.
Raiders defensive end Lamarr Houston and guard Lucas Nix returned to practice Tuesday afternoon after missing time due to injuries. Cornerback Tracy Porter is not practicing after leaving Monday’s practice early.
• San Diego Chargers rookie receiver Keenan Allen didn’t finish practice as a precaution due to a lingering knee injury. With starting receiver Danario Alexander out for the season and fellow starter Malcom Floyd out until at least Week 1, the Chargers have to do what it takes to keep Allen fresh and healthy.