Sebastian Vettel rubbed salt in Mark Webber's wounds by lapping faster than his unhappy Red Bull team mate in both practice sessions for what could be a title-deciding Brazilian Formula One Grand Prix.
Vettel led Webber one-two morning and afternoon, a day after the Australian had described himself as an 'inconvenient' title contender and accused the championship-leading Formula One team of favouring the young German.
Ferrari's Fernando Alonso, who leads Webber in the championship by 11 points and could clinch his third Formula One title if results go his way on Monday, was third fastest in the afternoon after an engine problem in the morning.
Red Bull, with Vettel desperate to win after engine failure while leading in South Korea left the young German 25 points behind Alonso with two races remaining, looked very much the team to beat.
McLaren's Lewis Hamilton, third in the championship challenge and 21 points behind Alonso, was 4th quickest.