Formula 1 pundit Martin Brundle says he has "no clue" whether Lewis Hamilton or Max Verstappen will win this year's World Championship.
Verstappen leads Hamilton by six points, with six races remaining, heading into this weekend's United States Grand Prix at the Circuit of the Americas.
A possible 159 points can be won at the remaining events and Brundle believes the title could even be decided on the extra point that's awarded for the fastest lap of the race.
"There are so many points and so many turning points to come in this championship, I don't have a clue who's going to win it," Brundle told Sky Sports.
"It's literally going to hang on a half a chance here, a bit of a scuffle out on the race track, reliability, sneaking a fastest lap in at the end of the race, or maybe losing a fastest lap if someone else punches in a quick lap.
"It's going to be that close between these two great teams and great drivers.”
Paul di Resta expects the championship to go down to the final race in Abu Dhabi and does not see either Hamilton or Verstappen giving each other any room if they are wheel-to-wheel.
"It's two of the best guys we've seen in Formula 1, going at it all the way until the last lap, I think," added di Resta.
"The nice thing is, when you get onto the wheel-to-wheel racing, Hamilton and Verstappen are going to throw everything at it.
"I think that's based on the Silverstone and Monza clashes. There's probably respect in a sense of what they do, but on the track they know that one wheel in front of the other gives them the corner."
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