McLaren's Lewis Hamilton and Ferrari's Felipe Massa will battle for the Formula One title in Brazil this weekend.
The following details what each driver needs to do to become champion.
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HAMILTON will be Formula One's youngest champion at the age of 23 if...
-- Massa fails to finish in the top two.
-- he finishes fifth or higher, regardless of Massa's placing.
-- he finishes sixth or seventh and Massa does not win.
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MASSA will be Brazil's first champion since the late Ayrton Senna in 1991 if...
-- he wins and Hamilton finishes sixth or lower. If Hamilton finishes sixth with Massa winning, the two would be level on 97 points but Massa would be champion 6-5 on race wins.
-- he finishes second and Hamilton is eighth. The two would be level on 95 points but Massa would win 3-2 on second places.
