Floyd Mayweather interrupts BBC Sport's Dan Roan

Floyd Mayweather interrupts BBC sports editor Dan Roan during a news broadcast from the MGM Grand in Las Vegas.

The world's media have gathered in Vegas ahead of the eagerly-anticipated super-fight between Mayweather and Manny Pacquiao on Saturday.

The fight is the richest in history, with the boxers sharing around £150m, although the exact figure is unknown.