Pittsburgh Steelers safety Troy Polamalu, left, runs away from San Diego Chargers center Nick Hardwick after he intercepted  a pass by Chargers quarterback Philip Rivers in the first half of the NFL football game in Pittsburgh, Sunday, Nov. 16, 2008. The Steelers won 11-10. AP Photo logo AP Photo 12 months ago

Pittsburgh Steelers safety Troy Polamalu, left, runs away from San Diego Chargers center Nick Hardwick after he intercepted a pass by Chargers quarterback Philip Rivers in the first half of the NFL football game in Pittsburgh, Sunday, Nov. 16, 2008. The Steelers won 11-10.