NAPA -- The training camp schedule originally mapped out by Raiders coach Dennis Allen had said the team would be full-go in full pads Sunday.

The reality of having 20 players who were held out of practice -- including seven defensive linemen and six potential defensive starters -- dictated otherwise.

Instead, the Raiders practiced in shorts and shells (the light protection that replaces shoulder pads on non-contact days), finished practice in a half-speed walk-through pace and ended up calling it a day about 20 minutes early.

"We had seven defensive linemen that couldn't practice, so it's hard to get multiple groups of a defensive front," Allen. "We took the pads off, slowed the tempo at the end and hopefully we can keep some of those guys fresh that are taking extra reps."

When practice ended, Allen, his defensive staff and Raiders scouts watched closely as Ryan Baker, a defensive end who last played with Miami, went through a workout.

Defensive linemen who couldn't practice and are considered projected starters included end Lamarr Houston and tackles Vance Walker and Pat Sims. Sims hasn't been on the field for any of the Raiders' nine practices.

Others who were out were nose tackle Johnny Jones, end/tackle Brandon Bair and tackles Myles Wade and Stacy McGee.

Also sitting it out were rookie outside linebacker Sio Moore and cornerbacks Mike Jenkins and Tracy Porter.

In most cases, the Raiders have declined to give specifics on injuries, with no details on the injury itself or on how long a player may be out.

"I think most of them will be OK, so I'm not overly concerned," general manager Reggie McKenzie said. "It's just one of those deals. Sometimes when you get hit at a certain position, then it's hard to keep the ones that are healthy from getting hurt. You just want to minimize that."

One player who continues to lose precious time is second-round draft pick Menelik Watson, who came camp with an undisclosed injury and has yet to practice. Watson, a former basketball player, has only 13 games of experience at tackle and was originally considered to be a potential starter on the right side.

"He's way behind. He went through the offseason program, but here we are in the second week of camp and he hasn't seen a down yet," Allen said. "He's got to get healthy and he's got to get back out there. It's frustrating to me, but it's frustrating for him, too."

Rookies who had some solid moments early in camp but who have been out of practice of late include a pair of sixth-round picks, McGee and running back Latavius Murray.

  • Long snapper Jon Condo, a Pro Bowl selection in 2009 and 2011, signed a three-year contract extension and remembered how much he disliked the specialty when he was a defensive player at the University of Maryland.

    "I hated it. I was playing outside linebacker and there was no other snapper and they just threw me in there," Condo said. "It took away from the defensive side of the ball. The coach keep doing this and you can make some money, you can make a living out of it."

  • Fourth-round draft pick Tyler Wilson again spent a lot of time watching as undrafted free agent Matt McGloin out of Penn State got the bulk of the third-team practice reps behind Matt Flynn and Terrelle Pryor.

    Wilson said the demands of being an NFL quarterback are considerable in terms of formations and protections and noted, "You learn you have to cherish every rep you can get. It's not like when I was at Arkansas and got every rep."

  • With right guard Mike Brisiel not practicing, the Raiders moved right tackle Khalif Barnes inside and worked Alex Barron with the first team at right tackle.

  • Flynn led the offense in a two-minute drill for a short touchdown pass inside the 5-yard line to Rod Streater in the back of the end zone, and Pryor did the same with the second team, with his score going to Jacoby Ford off a rollout to the right.