Roethlisberger had thrown for 398 yards and three touchdowns when he apparently took a knee to the helmet while being sacked by Derrick Johnson. He gave way to Charlie Batch. Coach Mike Tomlin said he was not certain how severe the injury might be.
“He took a blow, needless to say, it was a concussion-oriented thing so I doubt he was going to come back into the football game,’’ Tomlin said. “We will have more information as we proceed.’’
Matt Cassel had a horrendous first half, passing for only 35 yards on four completions. But he came through in the final two quarters and overtime, finishing with 248 yards and two TDs, including a 2-yarder to Jamaal Charles that made it 24-24 with 4:54 left in the fourth.
The Chiefs faced third down in OT when Cassel connected with Chambers, who was signed three weeks ago off waivers from San Diego. He went 61 yards before he was pushed out at the 4.
Just before Chambers’s grab, Steelers cornerback Ike Taylor dropped a possible interception.
Succop, the final player drafted in April, came in and clinched the Chiefs’ first home victory in more than a year. Succop also had a 27-yarder that tied it at 17-17 in the final seconds of the third quarter.
It was the second loss in a row for the Steelers, who were without injured Pro Bowl safety Troy Polamalu. Guard Chris Kemoeatu also went out with a knee injury.
In regulation, the Steelers had the ball for almost 19 minutes more than the Chiefs and outgained them, 463-206.
