This running joke started in Season 9 as an amusing way for Storyteller Marcus Johnston to award experience points to the players during the end-of-episode audio newsletter podcasts. He did it in the form of "Sports News," listing the "scores" (experience points) for each "team" (player):
Additonal Teams created in-story:
Player Ed Stasheff took it one step farther and actually mentioned these joke teams in the story, implying that the teams actually existed in the TI Universe. He gave the sport the appropriately hyper-patriotic name of "Fedball." He also joked that the K'Nes are miffed that the Fedball rules have not yet been changed to allow K'Nes athletes to fly on the field.