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Boys with O-line problems to start camp

OXNARD, Calif., -- The Cowboys are not even one practice into training camp and there are problems with the offensive line.

Five offensive linemen will miss Sunday's first practice due to injuries.

Staring left guard Nate Livings, starting right guard Mackenzy Bernadeau, backup center Ryan Cook, who started 11 games in 2012, backup left guard Ronald Leary and newly signed tackle Demetress Bell will miss the practice session.

Bernadeau injured his hamstring during the conditioning test on Saturday. Bernadeau was probably going to be limited in his return anyway because of his recovery from offseason shoulder surgery. But this latest setback is another example of how difficult the past two offseasons have been for Bernadeau. He missed the entire offseason due to injuries and he missed the start of training camp as well.

Cook and Bell, who are battling for roster spots, failed Saturday's conditioning test.

Livings (foot) and Leary (calf) were injured prior to training camp, and coach Jason Garrett said Saturday those players would be day-to-day.

It's unknown when Garrett will have his projected starters along the offensive line for training camp.

Here's the projected first-team offensive line: Left tackle Tyron Smith, left guard David Arkin, center Travis Frederick, right guard Kevin Kowalski and right tackle Doug Free.