Roger Federer hits a backhand against Hubert Hurkacz at Wimbledon on Wednesday in London. Photo: VCG

Roger Federer faced serious questions over his future on Wednesday after crashing out of Wimbledon in the quarterfinals, just five weeks shy of his 40th birthday.

Eight-time Wimbledon champion and 20-time Grand Slam title winner Federer lost 6-3, 7-6 (7/4), 6-0 to a Poland's Hubert Hurkacz, a player 15 years his ­junior.

There were no such problems for world No.1 and five-time champion Novak Djokovic who reached his 10th Wimbledon semifinal and 41st at the Grand Slams.

Djokovic, looking to equal Federer and Rafael Nadal on 20 majors, defeated Hungary's Marton Fucsovics 6-3, 6-4, 6-4.

He will face Canada's 10th seed Denis Shapovalov, who beat Russia's Karen Khachanov 6-4, 3-6, 5-7, 6-1, 6-4, for a place in Sunday's final.

Hurkacz will tackle Italy's Matteo Berrettini in the other semifinal.

Defeat was only Federer's 14th at Wimbledon in 119 matches and his first straight-set loss since an opening-round exit against Mario Ancic in 2002.

It was also the first time he had lost a set 6-0 at Wimbledon.

"I really don't know. I've got to regroup," said Federer when asked if his Wimbledon career was over. "With everything that comes after Wimbledon, we were always going to sit down and talk about it. I got to take a few days. 

"Just see, OK, what do I need to do to get in better shape so I can be more competitive."

Those discussions will also center on his participation in the Olympic Games in Tokyo which start in just over two weeks' time.

"Clearly there's still a lot of things missing in my game that maybe 10, 15, 20 years ago were very simple and very normal for me," Federer added ruefully.

World No.18 Hurkacz had never got beyond the third round of a Grand Slam before this Wimbledon.

However, boosted by having defeated world No.2 Daniil Medvedev in five sets in the last 16, he was a break up on a sluggish-­looking Federer in the sixth game of the opening set.

The Swiss star, who underwent two knee surgeries in 2020 and was bidding to be the oldest man in the Wimbledon last four in over a half a century, carved out a break for 2-0 in the second set.

He couldn't hang on and Hurkacz levelled in the seventh game from 1-4 down before dominating the tiebreak.

Federer looked punch-drunk and he was quickly down 0-2 in the third set before Hurkacz wrapped up the decider in just 29 minutes in front of a stunned Centre Court.

He is only the second Polish man to reach the semifinals at Wimbledon - Jerzy Janowicz being the other in 2013.

"It's super special to have played Roger here, it's a dream come true," said Hurkacz.