I feel like sports poetry shows up from time to time in some of the poetry journals I read but it is often about sports you wouldn't expect. There is not much about team sports, hardly any baseball or basketball and absolutely no football.
Boxing shows up a lot, as well as horse racing, bull fighting, runners, fighters of all kinds. It tends to be about solitary sports, especially ones that feed into our primal nature. I guess this just makes for more dramatic writing than poems about the Super Bowl.