McLaren chief Zak Brown has jokingly challenged Mercedes boss Toto Wolff to a boxing match in Las Vegas when Formula One visits the city for the inaugural Grand Prix there later this year.
F1 has exploded in popularity in America in recent years and the introduction of a Vegas race means three Grands Prix are being held in the US for the first time since 1982, with the Miami and United States Grand Prix also on the calendar.
And Brown wants to celebrate F1's return to Vegas for the first time since the Caesars Palace Grand Prix was scrapped by getting in the ring with Mercedes rival Wolff for a boxing match.
