Forfait à Umag, Rune worried: "The first tests on my wrist are not good".

Things are getting more complicated for Holger Rune.

Forced to retire against Arthur Fils in the quarter-finals of the Hamburg tournament (6-4, 4-1 ab.), the Dane is causing serious concern.

Already moderately reassuring after his match in Germany, the current world number 16 has just announced his withdrawal from the Umag tournament.

On social networking sites, he declared: "Unfortunately, the first tests on my wrist are not good.

So I won't be able to play in Umag this week.

I'm happy to have had the chance to meet all my fans here and I hope to be back.

Tomorrow there will be more tests and we'll see if the conclusions are the same for everyone. Thank you for your support and thank you to the tournament for doing whatever it took to help me."

With just a few days to go before the start of the Olympic Games, Rune's physical condition is a matter of concern, and it's not impossible that he could be forced to withdraw.