Grigor Dimitrov has admitted he feared for his life after contracting COVID-19 in June.
“The thing is real, the virus and how everything is handled,” Dimitrov told Sky Sports.
The Bulgarian contracted the virus during the Adria Tour.
“I was active all my life and then suddenly I was forced to be shut down, just physically, so it’s like you’re taking my wings away,” he said.
“But somehow I found a way to try and understand what is going on and the more I thought about it things are happening at a basic rate so if we are careful, we do the right things, things will be alright we have to absolutely respect the process of what is going on.
“I really didn’t feel well. I had very different symptoms with not being able to taste any food that I was eating and my smell was gone. I’m not even 100 per cent back to myself in those departments but at least I’m trying to get there every day.
“I was just not active. I was fearing my body shutting down which is the biggest fear for any athlete.”
Dimitrov is not sure whether he will participate in this year’s US Open.
“Right now I’m very uncertain,” he said.
“For Europeans, it’s hard because you have got to travel about 12 hours to get to New York and take a couple of planes, then get to a hotel, and the bubble is a bubble, but I mean statistically we’re like over a thousand people in the same place and it’s just not easy.”