The Washington Redskins acknowledged yesterday that rookie cornerback Carlos Rogers has a pre-existing stress fracture in his right foot but said doctors' primary concern is a bone bruise in his right ankle.

Rogers, the Redskins' top pick in the April draft, is expected to be in a walking boot and on crutches for two weeks and in a hard-bottom shoe for an additional two weeks. The team said he is not expected to play when training camp begins Aug. 1.

The Redskins said that Rogers also has a first-degree sprain of his right ankle, which caused him to miss the final two days of minicamp June 18 to 19.

Rogers originally sprained his ankle last month while working out at Auburn, his alma mater, the Redskins said. Rogers told reporters he had stepped in a hole. He aggravated the injury the first day of minicamp, June 17, and the coaching staff praised him for playing through the pain before they told him to sit out the next two days.

The Redskins said an old stress fracture was discovered during treatment of his ankle. The team's main concern is that the bone bruise doesn't develop into a non-displaced fracture. The boot and crutches are expected to help. The team said the stress fracture has not caused Rogers any previous problems.

Redskins Notes: Police in Anne Arundel County said they have interviewed LaVar Arrington, officially putting a close to any possible link to a shooting early Sunday morning at a party the linebacker hosted in Gambrills.

Detectives interviewed Arrington for almost an hour Tuesday in Severn, police said. The shooting left a security guard in serious but stable condition. "He [Arrington] came in at our request," Sgt. Shawn Urbas said yesterday. "He was very cooperative. And he provided us with what he knew about the party."

The shooting occurred about 100 feet from the 18,000-square-foot home while Arrington was inside. Urbas said no arrests have been made. The security guard, James Sidney, was shot several times and flown to the Shock Trauma Center in Baltimore. A hospital spokeswoman said yesterday that Sidney was expected to recover, although she declined to release further details upon the family's request. . . .

The Redskins announced the release of offensive lineman Tam Hopkins.