Nate Kaeding put the Chargers ahead by seven with a 33-yard field goal six minutes into the fourth quarter. Kaeding's field goal with 65 seconds left in the game pushed the lead to ten points, 23-13.
A screen pass from Roethlisberger to Najeh Davenport traversed 32 yards to put the ball on the Chargers 28-yard line on the Steelers first scoring drive. Willie Parker would break a tackle and take it inside the ten, giving the Steelers first-and-goal. Parker would then bounce outside behind a Hines Ward block on the next play from nine yards out to put the Steelers up 7-0.
Jeff Reed connected on his 37th straight field goal inside 40 yards to push the Steelers lead to 10-0 with five minutes to go before the half. Reed would also connect from 44 yards out leading into halftime.
After Keenan McCardell dropped a deep pass from Philip Rivers to open a drive, the Chargers took it a piece at a time. Rivers would lead a 14-play drive and go on to connect 7-of-9 for 72 yards that ended with a fade route to Malcom Floyd from nine yards out a minute before the half.
Michael Turner opened up the second half with a kickoff return into Pittsburgh territory, a 51-yard return, the longest of the year for San Diego. Turner snapped off a 12-yard run bouncing to the outside and LaDainian Tomlinson followed with an 11-yard rush to get inside the red zone. The drive would stall with Kaeding connecting on for a 29-yard field goal.