F1 News: Lewis Hamilton has Jenson Button's backing in Sebastian Vettel title battle
Hamilton is 34 points ahead of Ferrari’s Sebastian Vettel with five Grands Prix to go in the season.
Vettel still has up to 125 points to fight for in the championship and heads into this weekend’s Japanese Grand Prix desperate for a win.
But former world champion Button doesn’t believe Mercedes’ Hamilton can be caught.
Asked who he reckons will claim the title, Button said: "You'd have to say Lewis because the points gap is massive.
"I know that it can turnaround pretty quickly in this sport but reliability-wise they've looked very strong this year.