Patriots roll into Superbowl

to convert the turnover as Brady hit Jabar Gaffney over the middle for a 12-yard scoring pass and a 14-6 lead with 3:51 left in the half.

Ellis Hobbs intercepted Rivers on the next possession but the Chargers' defence held firm to set up Kaeding's third field goal.

Lawrence Tynes, meanwhile, kicked a 47-yard field goal 2:35 into overtime to send the New York Giants to the Super Bowl after they beat the Green Bay Packers 23-20 in the NFC Championship game at Lambeau Field.

In a thrilling encounter that swung back and forth, Tynes converted the winning kick after missing two previous opportunities in normal time to set up a February 3 showdown with the New England Patriots in Arizona.

Green Bay had led 10-6 at half-time as quarterback Brett Favre connected with wide receiver Donald Driver for a 90-yard touchdown after Tynes' two field goals had put the Giants 6-0 up.

Brandon Jacobs and Ahmad Bradshaw drove in third-quarter scores for the Giants while Favre found Donald Lee for a 12-yard touchdown for Green Bay.

Mason Crosby tied the game with a 37-yard field goal for the home side with 11:46 left in the fourth before opposite number Tynes struck a 43-yard effort left of the posts with 6:53 remaining.

Tynes had a chance to win the game with four seconds left in normal time but pulled his kick horribly to the left before making it third time lucky in overtime.