OXNARD, Calif. – The Cowboys' problems at the guard position have taken another hit.
Second-year pro Ron Leary is expected to undergo arthroscopic surgery on his right knee on Friday, a procedure that will put his chances of playing the Sept. 8 opener against the Giants at AT&T Stadium in jeopardy.
Leary sat out of Wednesday's walk-through practice in Oxnard, which put David Arkin running with the first-team again at left guard.
Leary had been working with the starters since he returned from a hamstring injury two weeks ago. Leary took every snap of the Aug. 5 game with the Dolphins in Canton, and also played into the second half against Oakland last week.
Fortunately for the Cowboys, the injury is to his right knee and not the left knee that scared off many teams from drafting Leary in 2012.
This injury further raises the question about the Cowboys' interest in veteran Brian Waters. The club has reached out to the 36-year old veteran who hasn't played since 2011. Waters, a five-time Pro Bowler apparently has interest in playing again, but doesn't appear to be in a hurry to join a training camp.
The Cowboys tried to sign veteran Brandon Moore last week but the former New York Jet standout decided not to reunite with coach Bill Callahan and chose to stay retired.
Don't forget about veteran Nate Livings, who also had a knee scope two weeks ago and has a shot to be ready by the start of the season.
For Saturday's game in Arizona, the Cowboys are expected to start Arkin at left guard and Mackenzy Bernadeau on the right side.