Home 'Burned To The F***ing Ground'

UFC legend Stephan Bonnar revealed his home was "burned to the f***ing ground" in a horrible fire this week ... but in at least a modicum of positive news, he says he was able to salvage some of his famous MMA memorabilia from the wreckage.

The 44-year-old shared a video of his Nevada home after a fire ravaged it earlier this week -- and, sadly, he said the flames completely gutted the place.

"No more casa," the former fighter said in the footage. "Lost everything in it."

But, Bonnar said after jumping through a window and scraping up his legs in the process -- he was able to find some of his old UFC gear and save it from the rubble.

Bonnar showed off gloves from his Hall of Fame fight with…