Chiefs quarterback Elvis Grbac thinks he’ll be ready to play Sunday at Seattle. Grbac left the game against the Rams with a bruised passing elbow, but felt much better Monday. He hopes to be able to practice Thursday.The Seahawks may have to turn back to Jon Kitna at quarterback against the Chiefs. Brock Huard started the last two games, but suffered a concussion Sunday, and was still a bit cloudy Monday. Kitna also suffered a concussion Sunday, but was much better Monday.