Denver, CO -- (Sports Network) - Pittsburgh Steelers safety Ryan Clark is inactive for Monday night's contest against the Broncos due to a blood disorder which makes it dangerous for him to play in high altitudes.

Clark was forced to miss the remainder of the 2007 season after suffering a ruptured spleen following the Steelers' last game at Denver, in December, 2007. He also had to undergo surgery to remove his gall bladder and lost 30 pounds before making a full recovery.