Nnamdi Asomugha doubtful vs. Chiefs

Oakland Raiders cornerback Nnamdi Asomugha and tight end Zach Miller are doubtful for Sunday's showdown against the Kansas City Chiefs.

Asomugha hasn't been able to practice all week because of the ankle injury suffered against Seattle last Sunday. Miller damaged an arch in his foot and hasn't been able to do anything.

Coach Tom Cable said it will be a game-time decision whether either will play.

Also, wide receiver Chaz Schilens (knee), wide receiver Louis Murphy (chest) and defensive tackle John Henderson (foot) are expected to miss the game.

Chris Johnson would take Asomugha's starting cornerback spot, while Brandon Myers would start in place of Miller.

This week's game against the first-place Chiefs is the biggest for the Raiders (4-4) in years. Oakland has not had a .500 record or better this late in the season since 2002.

John Clayton is a senior writer for ESPN.com. Information from The Associated Press contributed to this report.