Las Vegas Raiders defensive end Maxx Crosby plans to try to play Sunday against the Kansas City Chiefs despite nursing a knee injury. Crosby, who is officially listed as doubtful, has also been sick all week and didn't practice once. However, a source says Crosby has 'a real chance to play, and wants to.' Crosby has been dealing with the knee injury since Week 2 and has not missed a defensive snap since the Raiders' blowout loss at the Chicago Bears on Oct. 22.