I guess it depends if you get to the pneumonia phase or not. If the virus gets to your lungs, there is a possibility of leaving a permanent damage. Make a google search, this possibility is real.
I searched for some articles about this on google, but it makes me confused. Some said it can be recovered in a few months, some said it will take several years, or even permanent.
So actually it makes sense if the sports players are really afraid of this coronavirus pandemic that has a possibility to destroy their careers.
But it will be better if we know the accurate information about this from a very credible source. Is the corona pneumonia effect really permanent or not?