Floyd Mayweather calls out Conor McGregor after UFC star retires and insists he is ready to ‘punish’ Irishman in rematch of 2017 bout

Floyd Mayweather has called out Conor McGregor after the latter announced his decision to retire – insisting he is ready to ‘punish’ the ‘Notorious’ if he returns to fighting. The Irishman stunned the world on Sunday by saying he is quitting UFC at the age of 31 – just six months after comprehensively defeating Donald […]