Posted by ESPN.com’s James Walker
Without Steelers Pro Bowl safety Troy Polamalu, Gates has a mismatch against most Pittsburgh defenders one-on-one but hasn't done much in the first half. San Diego has been held scoreless, and Gates has just one catch for 15 yards midway through the second quarter.
Pittsburgh is getting good pressure on Chargers quarterback Philip Rivers and forcing him to make quick decisions. Rivers has completed just 4 of 11 passes to this point.