OXNARD, Calif. -- Dallas Cowboys cornerback Mike Jenkins wasn't approved by Dr. James Andrews to resume contact in practice, according to a source.

Jenkins, who underwent shoulder surgery, visited Dr. Andrews in Pensacola, Fla., on Monday.

Jenkins will continue his rehab work and conditioning until he is cleared. The Cowboys wanted Dr. Andrews to clear Jenkins first because he performed the surgery on the cornerback. If Jenkins had been approved by Dr. Andrews, Jenkins was then going to be seen by the Cowboys' doctors to see if he could be cleared to practice.

At the start of training camp, coach Jason Garrett said Jenkins could return to practice by the end of the preseason. But now it's uncertain when Jenkins will return.

The position is already missing first-round draft pick Morris Claiborne, who is out with a sprained MCL in his left knee. Orlando Scandrick, the starter alongside Brandon Carr, twisted his ankle during Monday's practice, but finished without any issues. Teddy Williams, who received some second-team snaps in practice, was dinged during Saturday's practice and isn't available.

The Cowboys were irked Jenkins didn't rehab his shoulder in Dallas. Jenkins instead rehabbed in Florida and missed the voluntary offseason workouts.

Jenkins said he can do everything with his shoulder, and Garrett said the corner is getting his strength and range of motion back.