Injuries piling up for Raiders

Instead, Spencer has spent more time in the trainer's room getting treatment for a sprained right foot than he has on the field.

He's had plenty of company, too.

The Raiders listed 20 players on their injury report Friday. That doesn't include linebacker Aaron Curry, who is a roster exemption for one more week after spending the first six weeks of the season on the physically unable to perform list. Cornerback Ron Bartell is also on the temporary injured reserve list.

Allen slightly altered Oakland's practices this week to accommodate the injuries, none of which appear serious. Spencer and right tackle Khalif Barnes (groin) are the only players listed as out for this week's game in Kansas City.

"We've got some guys with some soreness," Allen said. "It's just a matter of making sure that they're ready to go come Sunday, so we listed a few of them as questionable."

Defensive end Matt Shaughnessy and backup defensive tackle Desmond Bryant are among the seven Oakland players listed as questionable. Another 11, including running back Darren McFadden, defensive tackles Richard Seymour and Tommy Kelly, and kicker Sebastian Janikowski, are probable and likely to play.

Just when Spencer can get on the field remains uncertain.

Spencer, who opened the season with Bartell as the Raiders starting cornerbacks, hurt his foot early against Miami on Sept. 16 and initially needed crutches to get around. He also wore a protective walking boot. Since then, Spencer has made progress but not enough to be cleared to play.

"I'm not in control of the timetable," Spencer said. "Whatever they say is whatever they say. I come to work, do whatever I've got to do, do what they ask. Whenever doc clears me, he clears me."