The LFL, founded in 2007, was renamed to "Legends Football League" in 2011, but their highlight videos remain popular on the web mainly due to the same reason: ladies playing tackle football in their underwear.
And when a recent promotional photoshoot by the girls from the Vladivostok Orcas incorporated some of the same appeal, it caused quite an uproar on social media, some going as far as accusing players of "defeminizing" women.