Cornerback Leon Hall is listed as doubtful and defensive end Michael Johnson is questionable to play Sunday for the Bengals against quarterback Tom Brady and the New England Patriots.

Hall suffered a hamstring injury in the 34-30 win against Green Bay on Sept. 22 and hadn't practiced since until getting on the field Friday in a limited basis. The Bengals' injury report still lists him as having only a 25 percent chance of playing against the undefeated Patriots. Johnson has not practiced all week due to a concussion he received in last week's 17-6 loss at Cleveland.

Johnson did not tell the Bengals medical staff he was experiencing concussion symptoms until after the game. He was able to do some activity off the field Friday but he would have to pass a medical exam in order to be cleared to play Sunday.

"Michael is feeling good" said head coach Marvin Lewis. "The (concussion) protocol is just a process. We have to go through the protocol."

Brady has an inexperienced group of receivers and tight ends around him this season but has still managed to lead the Patriots to their first 4-0 start since 2007. The Bengals are 0-4 against New England since Brady took over as the Patriots' starter in 2001 and have given up at least 34 points in all four games. Their last win against New England came in the 2001 season opener (23-17) two games before Brady made his first career start.