WATCH: Kyrgios jokes about pub time after fall at Queen's Club

Nick Kyrgios has consistently performed well during the grass-court season, but a rough fall at Queen's Club on Monday has put his Wimbledon campaign in jeopardy.

Ouch is right. The 22-year-old was even at four games apiece in the first set against Donald Young when he slipped, receiving treatment on his left hip…

Kyrgios did not last much longer, retiring after dropping the set in a tiebreaker.

The fall and ensuing retirement may put the strength of Kyrgios' Wimbledon campaign in doubt. The Australian was not entirely healthy before stepping foot on the court at Queen’s Club.

Kyrgios walked on court with a sleeve on his right knee, and admitted to having to “manage some niggles” ahead of the French Open, where he lost in the second round to Kevin Anderson.

The world No. 20 is defending fourth-round points at Wimbledon, where he lost last year to eventual champion Andy Murray.

"It's rough to see him go down like that,” Young said. “Especially on surfaces like grass and clay—it's not for sure certain footing."

Kyrgios still seems to be in good spirits, joking that he'll spend his time until Wimbledon at the local pub.

“On that fall I just felt sharp pain,” Kyrgiossaid. “Then, I started feeling it when I was walking, when I was landing on my serve. It’s tough to play through. But there are worse things in the world than a guy slipping playing tennis. I’m sure I’ll live. I’d play Wimbledon if I was injured pretty badly anyway.”

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