Michael Phelps -- Crowd Surfing Accident Inside Vegas Nightclub ... ON TAPE

Finally, Michael Phelps broke something that wasn't a world record -- HIS ASS -- taking a nasty spill while crowd surfing in a Vegas nightclub this week ... and TMZ has the footage!Phelps -- who's STILL in party mode after the London Games -- hit up…

Source: http://www.tmz.com/2012/10/26/michael-phelps-crowd-surfing-accident-video/

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