It's fight day in Riyadh. Some of the biggest names in the sport have returned to Saudi Arabia for an epic fight card headlined by an undisputed light heavyweight title rematch. Artur Beterbiev and Dmitry Bivol are hoping to leave no doubt in their second meeting in four months.

Russian Dmitry Bivol avenged a previous defeat to take the undisputed light-heavyweight world title from Artur Beterbiev on a majority points decision in an epic rematch in Saudi Arabia on Sunday.