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Vettel fastest again in final practice before qualifying at US Grand Prix in Austin

  • Red Bull driver Sebastian Vettel of Germany gets talks to a crew member before the third practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Darron Cummings)

    Red Bull driver Sebastian Vettel of Germany gets talks to a crew member before the third practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Darron Cummings)  (The Associated Press)

  • Red Bull driver Sebastian Vettel of Germany gets talks to a crew member before the third practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Darron Cummings)

    Red Bull driver Sebastian Vettel of Germany gets talks to a crew member before the third practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Darron Cummings)  (The Associated Press)

  • Mercedes driver Lewis Hamilton of Britain listens to a team member following the second practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 15, 2013, in Austin, Texas. (AP Photo/Darron Cummings)

    Mercedes driver Lewis Hamilton of Britain listens to a team member following the second practice session for the Formula One U.S. Grand Prix auto race at the Circuit of the Americas, Friday, Nov. 15, 2013, in Austin, Texas. (AP Photo/Darron Cummings)  (The Associated Press)

Sebastian Vettel again posted the fastest lap at in the final practice at the U.S. Grand Prix, pushing past teammate and rival Mark Webber in the final minute of the hour-long session.

Vettel lapped the Circuit of the Americas in 1 minute, 36.733 seconds Saturday, a margin of 0.203 seconds faster than Webber. Those two will battle for pole position in the afternoon qualifying session for Sunday's race.

Vettel has already won the season championship and is aiming for a record eighth-consecutive win in a single season. Webber has started from the pole in two of the previous three races, but is still looking for a victory in his final Formula One season.

Mercedes' Lewis Hamilton, who won the U.S. Grand Prix last year, was third in practice and Sauber's Nico Hulkenberg was fourth.