IRVING, Texas – Safety Gerald Sensabaugh had arthroscopic surgery on his right knee recently, which could keep him off the practice field when the Dallas Cowboys open training camp in Oxnard, Calif., in two weeks, according to sources.

Sensabaugh missed several organized team activity workouts and the mid-June minicamp. Coach Jason Garrett said the decision to sit Sensabaugh was more of a precaution. When the knee continued to bother Sensabaugh, it was decided to go in for a cleanup.

Sensabaugh will be able to report for rehab only on July 25 at Valley Ranch when rookies, first-year players and quarterbacks practice at Valley Ranch. The hope is Sensabaugh can take part in the Cowboys’ first full-squad practice in Oxnard on July 30, but the team will be cautious.

Sensabaugh could be the only returning starter from the secondary in 2011 with the additions of cornerbacks Brandon Carr and Morris Claiborne in free agency and the draft. Brodney Pool, Barry Church and Matt Johnson are expected to compete for the other safety spot, which was held by Abram Elam last year.

Signed to a five-year extension last December, Sensabaugh has missed one game in three years with the Cowboys. He finished third on the team with 77 tackles last season to go along with two interceptions, four pass deflections, two forced fumbles, two fumble recoveries and two quarterback pressures.