Posted by ESPN.com’s Bill Williamson
Orton hurled an overthrown pass and it was intercepted by Pittsburgh safety Tyrone Carter, who returned it 48 yards for a touchdown to give Pittsburgh a 7-3 lead with 12:50 to go in the second quarter.
It was Orton’s second interception of the season. His only other interception was a Hail Mary at the end of the first half against New England on Oct. 11. It was intercepted by Patriots receiver Randy Moss.
Carter is playing because starting safety Ryan Clark is inactive over health concerns. Clark has a rare sickle-cell trait that causes his body to adversely react to exertion in high altitudes. In 2007, the last time Clark played in Denver, he had complications that led to him losing his spleen and gall bladder.