Andre Johnson has a mild left hamstring injury, though Houston coach Gary Kubiak says it's too early to know if his star receiver will play at Cincinnati this weekend. Houston (9-3) has taken command of the AFC South with a franchise-record six straight wins, most of it without their five-time Pro Bowler. Johnson pulled up in the third quarter of Sunday's 17-10 win over Atlanta as he was chasing down a deep pass from rookie T.J. Yates, who was making his first NFL start. Johnson was playing his second game after missing the previous six with a right hamstring injury that required minor surgery.