Washington Redskins Coach Joe Gibbs said yesterday he was leaning toward activating running back Wilbur Jackson for Saturday's playoff game against Detroit.

"We all know what kind of player Wilbur is," Gibbs said. "But I haven't made up my mind as to what I want to do.

"I want to see (Wednesday) who shows up and how healthy everyone is. Maybe Virgil Seay will come in at 100 percent. That's why we want to wait and weigh our options some more."

If Jackson, who has been on injured reserve since hurting his knee early in the season, is activated, he will replace Art Monk on the roster. Monk, who has a facture in his right foot, cannot play again this season.

Gibbs said he still didn't expect Seay to play Saturday, and expects to start Alvin Garrett in Monk's place.

The receivers went through a half-speed workout yesterday. Gibbs said tight end Clint Didier practiced extensively as a wide receiver and that Rich Caster took some turns at that spot. Nick Giaquinto and Rick Walker replaced Monk as the third-down man in motion.

Fullback John Riggins ran wind sprints and Gibbs said he was encouraged, although "I had been expecting to see John play the last two weeks and he hasn't. We'll have to see how he practices this week, but I expect him to play."

Correction: the Redskins set a team record for fewest interceptions thrown in a season, nine. The old record was 10.