Daniil Medvedev is over his Covid-19 infection but coach Gilles Cervara says he worries it has forced him to fall 'significantly' behind his rivals.
Medvedev tested positive for Covid-19 just before the Monte-Carlo Masters earlier this month, forcing him to withdraw from the tournament and enter a period of self-isolation instead.
Ahead of the Madrid Masters, though, Cervava has confirmed that Medvedev has been able to resume training, although not, he fears, without consequence.
“He has been able to work for a week," Cervara said in an interview with Tennis Majors.
"The first few days we kept a close eye on the reaction of his heart to effort, the reaction of his lungs, we were very attentive to his health sensations – headaches, difficulty in exertion – in order to adjust our training demand.
"You don’t pick up like that overnight after a week off, especially after contracting a little-known virus.”
When asked how far Medvedev had fallen behind as a result, Cervara said: "It is significant.
"You see Stefanos Tsitsipas who has played 10 matches and the certainty he has created by winning nine, [and] he is not the only one.
"The extent of this delay is unknown. I shouldn’t compare us to other players, we just have to focus on our own goals, day by day, to get to the end of the road. I can’t be ahead of my player.”
For more exclusive content from Tennisbuzz, including news, features, trivia, promotions and more, please be sure to sign up for our newsletter below or via our home page.
Why not test your tennis knowledge by tackling one of our fiendish quizzes too?