So there are restrictions by association if a player has been in contact with a Positive Covid person. But, for the most part if you have already been exposed the likelihood of contracting the disease again is almost zero. It hasn't actually been proved yet, they know that those infected have had a secondary breakout like 2 wks later and there have been a ton of false positives.
That said, if player was positive with symptoms 2mos ago but he comes into contact with another positive player, even though he likely doesn't get sick, does he still lose his opportunity to play?