Getty Images

The Chiefs continued their push for a playoff spot with a victory over the Bills last Sunday that ran their record to 6-5 and their winning streak to five games.

They lost a key player to a knee injury during the game when linebacker Justin Houston had to leave the game, however. Coach Andy Reid’s initial declaration that Houston sprained his knee created cause for concern about Houston’s availability for this week’s game against the Raiders, but he had a more positive take on Houston’s condition, which he called a hyperextended knee, Wednesday.

“He’s made big improvements over the past two days,” Reid said, via the team.

Reid said, via Terez Paylor of the Kansas City Star, that Houston, who isn’t practicing Wednesday, is day-to-day and no determination has been made about his status for Sunday.

Elsewhere on the Chiefs injury front, running back Charcandrick West is back at practice after missing last week’s game because of a hamstring injury and left tackle Eric Fisher is also on the field after hurting his neck against the Bills. Left guard Ben Grubbs won’t be on the field Wednesday, however, and won’t be back this season after being placed on injured reserve because of his neck injury. With center Mitch Morse dealing with a concussion, the Chiefs elevated Daniel Munyer from the practice squad because he can play the position.