Roger Federer has pulled out of the upcoming Masters 1000 events in Cincinnati and Toronto due to knee troubles.

This leaves the Swiss great’s participation at the US Open in serious doubt.

Federer, who will turn 40 on 8 August, has been plagued by knee injuries in recent times after undergoing two knee operations in 2020.

He also pulled out of the Olympic Games tennis event after a quarter-final exit at Wimbledon.

Organizers announced on Thursday that Federer, along with Milos Raonic, Alexander Zverev, Matteo Berrettini and Pablo Carreno Busta will not play at next week’s Rogers Cup in Toronto.

The organizers of the Western & Southern Open in Cincinnati also confirmed that Federer will not play in the event to be held from 14-22 August.

A 20-time Major champion, Federer is the winningest player at the Western & Southern Open with a 47-10 win-loss record. The most recent of his record seven championships came in 2015 when he successfully defended his title by beating Novak Djokovic in the final.

Six former men’s champions remain entered in the Western & Southern Open, including two-time champions Djokovic (2018, 2020) and Andy Murray (2008, 2011) along with Daniil Medvedev (2019), Grigor Dimitrov (2017), Marin Cilic (2016) and Rafael Nadal (2013). The women’s field will feature five past champions, including two-time winners Serena Williams (2014, 2015) and Victoria Azarenka (2013, 2020) as well as Madison Keys (2019), Garbine Muguruza (2017) and Karolina Pliskova (2016).

With Federer out of both US Open tune-up events, it’s unlikely that he’ll play the year’s final Grand Slam.

It’s a harsh reality for die-hard Federer fans but the Swiss great’s glittering career may be coming to an end sooner, rather than later.

Picture: ATP Tour – Twitter

Follow us on Twitter and Facebook