KANSAS CITY, Mo. (AP) — Chiefs coach Todd Haley says quarterback Matt Cassel remains a question mark for Kansas City's home opener Sunday against the Oakland Raiders.

Cassel missed last week's season opener at Baltimore with a left knee injury he sustained in the third preseason game on Aug. 29. He returned to practice last week but did appear to be limping slightly.

Haley said Tuesday the decision to start Brodie Croyle against the Ravens was not made until shortly before kickoff, but that he hopes to get a good reading on Cassel this week much earlier.

Croyle hit 16 of 24 passes for 177 yards and two touchdowns in a 38-24 loss in a game that was not decided until late in the fourth quarter.