San Diego would stay close as Rivers completed a 35-yard touchdown pass to wide receiver Vincent Jackson.
Rivers completed his check efficiently, then straightened and stepped back with almost comical quickness.
Rivers completed 23 of 37 passes for 228 yards and 2 touchdowns.
Rivers completed 12 of 19 passes, two for first-quarter touchdowns, and was named the game's most valuable player.
Rivers completed his first three passes that game and looked to have capped his first drive with a touchdown pass.
Rivers completed his first 13 attempts in the second half and the Chargers won, 31-15.
On San Diego's ensuing drive, Rivers completed a 39-yard pass to Chambers at the Titans 8-yard line.
Rivers completed 12 of 22 passing attempts for 115 yards with one interception and two fumbles.
Rivers managed the game well despite only passing 11 times, but completed 8 passes, one for a touchdown, in a 27-0 rout of the Raiders.
Rivers completed 26 of 46 throws for 385 yards and four touchdowns.