Former UFC champion Conor McGregor is the latest star to take part in the ‘bottle cap challenge’ as the MMA superstar released his own video of him nailing the viral trend before daring former foe Floyd Mayweather Jr to give it a shot.

As bizarre online trends go, the ‘bottle cap challenge’ appears to be the 2019 version of the ‘ice bucket challenge’.  

Watch below:  

The challenge was supposedly started by UFC featherweight champion Max Holloway but it has since has seen John Mayer, actor Jason Statham and now Conor McGregor are among those to have gotten involved.

Let’s see if Floyd can figure out how to use those short little legs of his for something other than dancing around the ring.  

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