Four talking points ahead of Nico Rosberg’s day of reckoning

Forget all the other permutations. If Nico Rosberg crosses the line in first place he will be crowned world champion on Sunday. The German, who is 19 points clear of Lewis Hamilton with only 50 remaining, has good form in these parts. A winner here last year, and in 2014, while he also finished ahead of Hamilton in their first term together as Mercedes team-mates. Indeed Interlagos has not been a happy hunting ground for Hamilton.
The Briton may have won his maiden championship here in 2008 - after he dramatically passed Timo Glock on the final corner of the final lap to finish fifth and beat Felipe Massa to the title by just one point - but he also lost the championship here too in 2007. He has finished on the podium in only three of his nine outings in Brazil, and is yet to trouble the top step. But Hamilton will know that only victory will be enough if he is to take the title tussle to the final round of the season in Abu Dhabi.