Flubber,

If a wrestler is going up to someone and saying "hey go to the prayer meeting or else!" Then yes it is Coercive.
If a wrestler says "hey if anyone wants to come pray for the safety of all of our athletes you are more than welcome too!" then in no way shape or form is it coercive.

By the way, the second example I used is exactly what Wrestlers for Christ is doing. I have witnessed it.

Gymmom,
people have copied and pasted from your website you provided evidence that it is constitutional. I hope you are at a regional where the prayer takes place you that you can see how this goes about. Hopefully you won't mind it anymore.