Well, there's no way you can do football under social distancing guidelines. Each team has to field 11 guys and you're already over the limit. And even renting a football stadium with zero fans is insanely cost prohibitive.
With WrestleMania, at least he had the option to pretape the matches in multiple venues, which they did. And in most of the cases, you really don't need ten whole people to film a match between two guys.