ANOTHER ONE BITES THE DUST
Chad Johnson is a master in footwork, but his skills certainly don't translate to sandboarding ... 'cause the ex-Bengals star tried out the sport -- and straight-up busted his ass!!
The former NFL wideout is in Qatar covering the World Cup for FOX ... and during a bit of downtime between games, he decided to hit the dunes for a boarding lesson.
The tutorial seemed to go pretty well at first ... but disaster struck as Ochocinco gained momentum going down the hill.
Check out the video -- Chad loses his balance as his speed increases .