The Redskins made a move to help their beaten-up offensive line today when they acquired guard-tackle Lee Spivey from the Detroit Lions for a 1982 conditional draft choice. Spivey, out of Southern Methodist, is 6 feet 2 and 270 pounds, and was the Lions' seventh-round draft pick this year.

"He's a guy we like," Coach Joe Gibbs said. One thing the Redskins must like about Spivey is that he is healthy. The team has only three completely healthy tackles -- George Starke, Mark May and Allan Kennedy -- and two healthy guards -- Russ Grimm and Darryl Grant.

Gibbs said of Grant: "We'll give him a look-over Saturday."

Grant, a rookie, will get this opportunity because starting guard Melvin Jones spent another day limping through practice today. Jones did not even work in the contact drills. "I'm pretty sure I'll play," said Jones, who seemed surer Sunday. Gibbs said Jones would not play if he still was bothered by his strained Achilles.

Today was more than just a day for announcing cuts. It was also a day for updating bruises.

The updates on the offensive line were mostly good ones. Guard Ron Saul and tackle Jerry Scanlan had arthroscopes performed today to remove fragments from injured knees. Both are expected to be released from Sibley Memorial Hospital Tuesday or Wednesday.

"Scanlan should be ready to play in two weeks," Gibbs said. It is expected that Saul will be ready soon thereafter.

In Arlington Hospital, it was determined today that rookie tackle Joe Jacoby has an abdominal inflammation. Jacoby had checked into the hospital Sunday with the problem. Then, doctors noticed another problem.

"The doctors found that Joe had a rare irregular heartbeat that they say happens one in 70,000 cases," Gibbs said. "They checked it for 24 hours and then cleared him to play."

Jacoby will practice Wednesday and should be ready to play in Saturday night's exhibition in Baltimore.

Defensive end Mat Mendenhall went through his first session of contact drills today since spraining his knee July 15 . . . Neither defensive end Coy Bacon nor cornerback Lemar Parrish practiced today.