Roger Federer and Rafael Nadal have been in imperious shape so far this year and the two have seen themselves restore their form to some degree this season.

Roger Federer at US OpenAnd now the unfathomable has occurred with the Swiss and the Spaniard in a two-manner fight for a spot as the new World No.1 before the current week's over.

Andy Murray pulled back from Cincinnati and is surrendering the 600 ATP Points he had earned subsequent to making it to the finals last season.

Likewise Read: Roger Federer at US Open – Top Wins 

Should Federer reclaim the World No.1 positioning, he would turn into the most seasoned man to ever guarantee this accomplishment. Agassi has held this record in the wake of being on the highest point of the rankings stepping stool when he was 33 years and 131 days — well shy of Federer's 36 years.

We investigate the World No.1 Scenario!

Rafael Nadal responds in the wake of winning a pointFederer is 410 ATP positioning focuses behind Nadal and requirements to win the title to have an outside shot at the No.1 spot. He additionally needs to trust that the Spaniard gets out before the finals.

As the sprinter up gets 600 ATP focuses, a spot in the finals guarantees Nadal the Top Spot.

Nadal would be gunning to admission superior to anything what he did in Cincinnati a year ago (R 16) and would be meaning to grasp the No.1 spot.

Likewise Read: Rafael Nadal at US Open – Best Wins