I can imagine it must be a stressful scenario to prepare for given your past experiences and trauma!

The first step would be to talk to your therapist about methods of handling this as your therapist may know you best, if you have been with them for a while. I hope you have time before the little league starts.

Maybe one aspect that might help is finding a way to disassociate the surgical mask with the people behind them?

In this instance it's used to prevent the spread of corona which could be a positive aspect to focus on.
Another is that many might not have surgical masks on but decorated fabric ones to protect themselves which could help ease your mind.

I hope this helps and I wish you all the best in finding a method that works for you, its a stressful situation but you're going to get through it and find a way.
Don't forget you're still here now :)

Thank you, Pug. Exposure therapy underway. I've had to deal with an unfortunate number of phobias in my recovery and so far this one is proving as resilient as my light phobia The mask phobia never was much of a problem until surgeon imitators started popping up everywhere. The fashion masks haven't helped, at all. They were already popular among medical personal when I went through the trauma. One staff members liked Winnie-the-pooh on her lips. That silly bear still gives me nightmares sometimes. In my dreams, he's a pudgy people eater. Don't let that innocent smile fool ya.

I was hoping to find someone who is involved in sports this season, whether as a player or a supporter. What little I understand about sports makes it tough to fathom adding masked social distances to the equation.