Steelers take big lead

Posted by ESPN.com’s Bill Williamson

DENVER – The Steelers have taken a commanding lead after another Kyle Orton mistake.

Orton overthrew Brandon Marshall and the ball was intercepted by Pittsburgh safety Troy Polamalu at the Denver 25 with just over eight minutes to go. Three plays later, Ben Roethlisberger hit rookie receiver Mike Wallace on a 35-yard touchdown on 3rd-and-10. Pittsburgh leads 21-10.

Orton had a ball intercepted by Pittsburgh safety Tyrone Carter, who took it back 48 yards for a touchdown, in the first half. Orton has been intercepted three times this season.