Roger Federer will return to the world number one spot on Monday when the men’s ranking is released after Dominic Thiem of Austria stunned top seed Rafael Nadal in their Madrid Open quarterfinal clash on Friday.

Federer will replace Nadal whose 21-match unbeaten run on clay came to an end after he was knocked out of the Madrid Open following a 7-5 6-3 loss to Thiem.

The Spaniard had been unbeaten on the surface since losing to Thiem in May 2017 and had earlier set a new record of 50 consecutive set wins on a single surface on Thursday having not dropped a single set on clay since their May 2017 meeting.

Thiem will next face Kevin Anderson of South Africa for a place in the Madrid Open final.