Watch Mexico's Saul 'Canelo' Alvarez and Kazakhstan's Gennady Golovkin face off in a tense weigh-in before their hugely anticipated middleweight rematch in Las Vegas.

Listen to full commentary on BBC Radio 5 live & online text updates from 04:00 BST on Sunday.

READ MORE: Not so much a fight for the ages as one for the sages.

WATCH MORE: