Novak Djokovic shows no ill effects of surgery after breezing into second round at Wimbledon

The 37-year-old's chances of featuring at Wimbledon looked all but impossible when he went under the knife in Paris last month for surgery on a torn meniscus.

But a stroll against the Czech qualifier demonstrated to the doubters that not only is Djokovic fit, but he is also determined to at least challenge for title number eight at the All England Club.

Sporting a grey knee support — not exactly consistent with Wimbledon's all-white policy — Djokovic charged through the first set in only 34 minutes.

The knee was tested when in the second Djokovic had to fully stretch his right leg to keep the ball in play, letting out a trademark roar when he subsequently won the point.

With one seven-time champion watching another — snooker superstar Ronnie O‘Sullivan was in Djokovic's box — the Serbian completed what was probably the perfect opening work-out in less than two hours.

"Very good," he said. "I'm very pleased with the way I felt on the court. Obviously coming into this year was different circumstances because of the knee, and didn't know how everything would unfold on the court.

"I'm extremely glad about the way I felt and the way I played. I tried to really focus on the game and not think too much about the knee. I've done everything possible in the last three-and-a-half weeks.

"If it was any other tournament I probably wouldn't have risked it — but I love Wimbledon."

Fourth seed Alexander Zverev, last month's French Open runner-up, began his latest challenge for a maiden grand slam title with a 6-2 6-4 6-2 win over Roberto Carballes Baena.

Polish seventh seed Hubert Hurkacz dropped the first set to Moldovan Radu Albot but went through in four, but sixth seed Andrey Rublev suffered a shock exit to grand slam debutant Francisco Comesana.

The combustible Russian at one point smashed his racket against his own thigh six times as he slumped to a 6-4 5-7 6-2 7-6 (5) defeat.