Roger Federer has pulled out of the Paris Masters
Federer, 36, announced his decision to give Paris a miss just hours after winning the Swiss Indoors final.
He cited a back injury as to the reason why – giving Rafael Nadal a free path to the no.1 spot. The Spaniard just needs one win this week to guarantee ending 2017 at the top of the pile.
Federer's withdrawal means Nadal is the one standout name in the draw this week.
Andy Murray, Novak Djokovic, Stan Wawrinka, Nick Kyrgios and Kei Nishikori are all among the big names joining Federer on the sidelines.
Federer celebrated his eighth Swiss Indoors title on Twitter last night
Speaking on Sky Sports, pundit Barry Cowan revealed: "The tournament weren't too happy with Federer pulling out, which I must add, he's every right to do what he wants to do."
But fellow commentator Mark Petchey believes Federer, who was won 19 Grand Slam titles, shouldn't have to worry about playing.
He said: "He's certainly given enough to the tour.
"He's earned his right not to play these tournaments now given what he's achieved.
"I never felt like Roger was coming to Paris to be honest.
Roger Federer treats ballkids to pizza after Basel title triumph
Mon, October 30, 2017
After sealing his eighth Basel title on Sunday, Roger Federer treated the ballkids of the tournament to a round of pizza!
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Roger Federer treats the Basel ballkids to pizza after winning his eight title
"He's chased the no.1 at times this year and it didn't work out for him but at the end of the day, as much as it is a massive achievement for Rafa or anyone who has ever done it, it's not really one that people talk about to be honest.
"Sampras' six consecutive career-end no.1s is a personal highlight for him but it's not how people remember the Great America.
"They remember him for his major triumphs, his Wimbledon titles, that feels to me a bit like at the bottom end of the great achievements they've obviously had."