You have no solid rebuttal for whatever you're trying to prove, so now you get some random generalities so you can feel better behind your keyboard.
What it looks like to me: football player gets COVID, wait minimum 14 days then have a cardiac MRI. If that comes back clean, wait another 7 days and they're cleared to go. Total 21 days off. If it comes back problematic, they might need to sit out 3 months as that is the current protocol for myocarditis.
OSU study, which was small but is the only data really avail among student athlete populations, says 15% of athletes with COVID develop myocarditis, with an additional 30% showing signs they previously had myocarditis but had since recovered.