Novak Djokovic has the year-end world No 1 in his own hands so long as he wins every match this week.
Rafael Nadal slipped up against Alexander Zverev on Monday night so Djokovic has to maintain a 100 per cent record and claim the ATP Finals title to ensure he finishes the season top of the standings.
However, the Serbian is set to take on Roger Federer in his final round robin match on Thursday, which is expected to be his most difficult test yet.
But Federer claims the pressure of gaining 200 ATP points will not be on the mind of Djokovic when they go toe-to-toe.
“Novak is still playing for No 1, we‘ll for sure know more after Djoko-Thiem match,” Federer told SRF.
“But at the end I think the whole mathematics doesn‘t really count a lot, it‘s gonna be more like ok, you fancy to beat Federer?
“You fancy to beat Djokovic? Ok, then let’s do it.”
Federer is No 3 in the world rankings and stands no chance of joining his rivals in the battle.
And at 38 years old, he has seemingly given up on focusing too much energy on what his standing is.
“Points? Yeah, who cares? Who cares if I’m ranked three, five, nine?” Federer said during his English press conference.
“If I feel like I’m 100 per cent fit, then I feel like I have a chance to win the tournament.
“But if I don’t feel that way but I’m ranked 1 or 3 or 5, whatever it may be, I know it’s going to be extremely more difficult and sometimes almost impossible, even though I feel like if I’m in a draw, usually I always give myself a chance.
“So rankings is not the priority unless it’s battling for World No 1, to be quite honest.
“But of course it can help that you might not play a certain guy earlier, but at the end of the day, I anyway feel like at one point you’ve got to beat them probably anyways.
“So it doesn’t matter if I play them in the semis, finals, or quarters or fourth round. Not really, actually, at the end of the day.”