Tennis great Roger Federer has called on the Olympics organisers to end the uncertainty around the Tokyo Games, with the 20-time Grand Slam winner saying he was still in two minds whether to compete.

The Olympics are set to run from July 23 to August 8 after being postponed in March last year over the coronavirus pandemic.

But Japan, battling a surge of infections, has extended until the end of May a state of emergency in its capital, Tokyo, and three areas.

“Honestly I don’t know what to think. I’m a bit between the two,” Federer,

who won a doubles gold in the 2008 Beijing Games and a silver in singles four years later in London, told Swiss television station Leman Bleu on Friday.

“I would love to play in the Olympics, win a medal for Switzerland. It would make me especially proud. But if it doesn’t happen because of the situation, I would be the first to understand.

“I think what the athletes need is a decision: is it going to happen or is it not going to happen?

“At the moment, we have the impression that it will happen. We know it’s a fluid situation. And you can also decide as an athlete if you want to go. If you feel there’s a lot of resistance, maybe it’s better not to go. I don’t know.”

Rafael Nadal and 23-time Grand Slam winner Serena Williams this week said they were still unsure of competing in Tokyo.