(San Diego, CA) -- Randy Bullock kicked a 41-yard field goal as time expired to finish off the Texans' 31-28 comeback win over the Chargers at Qualcomm Stadium. Houston trailed 28-7 early in the third quarter before rattling off 24 unanswered points. Brian Cushing tied the game at 28 with an 18-yard interception return for a TD. Andre Johnson caught 12 balls for 146 yards, while Owen Daniels hauled in two touchdowns. Matt Schaub completed 34-of-45 passes for 346 yards, three TDs and one interception. San Diego jumped out to the lead behind four touchdown passes from Philip Rivers. Eddie Royal hauled in two of them. The Chargers only gained 263 total yards.