Zverev doubtful for Hamburg with knee injury as Olympics eyed

Alexander Zverev is doubtful for the ATP clay tournament in his home city of Hamburg from Monday due to a knee problem.

But the Paris Games on the Roland Garros clay from July 26-August 11, where the German is reigning Olympic champion, are not at risk.

"I would have to play Hamburg in eight days," Zverev said after his round of 16 exit to Taylor Fritz at Wimbledon on Monday. "It's something very painful, but it’s not dangerous. And when the pain is gone, it’s gone."

He played with painkillers against Fritz having hurt his knee in the previous round on Wimbledon's grass.

The advantage of playing in front of his home crowd in Hamburg would be to get used to clay again before Paris.

"I have to see how it develops," the world number four said of his injury. But three weeks would be "more than enough time" to get fit for the Olympics.