xfl, llc, operated as xfl, was a professional american football. the league was founded by vince mcmahon, owner of the world wrestling federation (wwf). the league was founded in 2000. the xfl was supposed to be a major professional sports league complement to the off-season of the nfl, but could not find an audience and folded after its first season. the first and only champions were the los angeles xtreme. both the wwf and nbc each lost a reported $35 million.