According to Tracy Mark Lee, a character designer from Guess Who, there will be a football episode in the second half of season 2. It's unclear if the guest star will be a football player, or if it's just a football-themed episode (like the Macklemore one was a baseball-themed episode despite him being a rapper). While Tracy did blur out the villain, you can still see a rough sketch of it in the upper left corner.
Here's a link to his Instagram post about it.
~ WildwindVampire ~