The New York Jets opened training camp without cornerback Darrelle Revis

Clemens is starting camp on the active-physically unable to perform list because of a strained calf, but he's not concerned about missing much time.

"They're just going to bring me along slow,'' he said. "I'll probably be back on the field in the next couple of days. It's nothing serious.''

Clemens is part of a logjam at the position with Sanchez, Brunell, Kevin O'Connell and Erik Ainge, who's currently on the reserve-non football injury list with an undisclosed illness. There's also wide receiver Brad Smith, a former college quarterback who might see more time under center this season in certain situations.

"This is how the quarterback position breaks down, in my opinion, right now: If your name is Mark, you're safe,'' Clemens said. "If your name isn't Mark, then, who knows? It's going to be an interesting next four weeks until this thing plays out. We'll see. They might carry four, they might carry three and they might carry two.''

There were some thoughts that the Jets might cut Clemens after they signed Brunell, a 39-year-old former Pro Bowl quarterback who played the last two years in New Orleans.

"I'm confident that I'm going to be on a roster,'' Clemens said. "As of right now, I'm on this roster and I'm excited about it and excited to go out and compete.''

Clemens said he and his agent have never asked the Jets to let him go pursue Bart Scott a job elsewhere, and playing for a players' coach such as Ryan is the major reason.

"The only other side to that is that I still believe I can play,'' Clemens said. "This is Mark's team and he's got the future with this team, and that's understandable. I'm not banging on the door to get out of here by any means.''

The New York Jets opened training camp without cornerback Darrelle Revis, Albert Haynesworth missed another practice with the Washington Redskins after failing to take a conditioning test, and the San Diego Chargers finally signed rookie running back Ryan Mathews.

Revis is holding out while locked in a contract dispute with the Jets, and there's no telling how long the All-Pro might stay away.

"Darrelle and his family were extremely deliberate with the decision-making process," Braylon Edwards agent Neil Schwartz told the Associated Press. "Obviously his actions speak far louder than words."

Revis didn't show for the team's conditioning test Sunday morning at the Jets' training facility in Florham Park, N.J., and officially became a holdout when he missed the team's first meeting at 5:30 p.m. in Cortland, N.Y.

Not good news for a team with its sights set on a Super Bowl.

Schwartz and agent Jon Feinsod said both sides worked until the last minute to get something done. General manager Mike Tannenbaum said the Jets offered long-term and short-term deals, and a face-to-face meeting in the last 72 hours and all three were denied.

Haynesworth's sore left knee kept him from taking the conditioning test once again, forcing him to sit out practice for the fourth straight day.

"There's no change from yesterday," coach Mike Shanahan said. "He's still Dustin Keller sore, irritated, getting treatment, working out, and we'll see if he's ready to go tomorrow."

The two-time All-Pro defensive tackle won't be allowed to practice until he passes the test. He failed it on the first day of training camp Thursday and again on Friday. He didn't take it Saturday because he had a small amount of swelling in his knee.

After Sunday's practice was over, Haynesworth emerged for what has become a daily ritual. He spent about 15 minutes walking through plays with defensive coordinator Jim Haslett and defensive line coach Jacob Burney, learning the nuances of the team's new 3-4 defense.

Haynesworth is the only Redskins player required to take the test because he skipped the Darrelle Revis  team's offseason conditioning program, partly because he wanted to work out on his own and mostly because he didn't want to play nose tackle in the 3-4 scheme and was hoping for a trade.