Ferrari's Fernando Alonso can win his third Formula One title with a race to spare in Sunday's Brazilian Grand Prix.
The following details what the Spaniard needs to do to become champion, and what he needs others to do:
First, he must finish on the podium.
- Alonso will be champion if he wins and Red Bull's Mark Webber finishes fifth or lower.
- If he is second, Alonso will need Webber to be eighth or lower and McLaren's Lewis Hamilton or Red Bull's Sebastian Vettel not to win.
- Third place will suffice if Webber is 10th or lower and if Hamilton is no higher than fifth and Vettel out of the top three.
- Red Bull need to score 16 points more than McLaren to take the constructors' title.
