World's best Crossfit athletes competing Down Under

The world's best Crossfit athletes are about to take to Melbourne's Margaret Court Arena for the Crossfit Invitational.

It's the first time the fittest in the world have made the trip Down Under to take on our Australian athletes.  

The competition is all about bragging rights, as four teams from the US, Canada, Europe and the Pacific battle it out in Melbourne tonight.

9NEWS reporter Brittney Kleyn spoke to Crossfit Games General Manager Justin Bergh, for an exclusive insight to what's in store.