SAUL 'CANELO' ALVAREZ and Terence Crawford's weigh-in was overshadowed by a violent brawl in the crowd ahead of the highly-anticipate fight.

Canelo, 35, and Crawford, 37, face off TONIGHT in a super-middleweight showdown at the Allegiant Stadium in Las Vegas.

Both fighters weighed in at 167.5lbs (12st) on Friday before their upcoming clash in Nevada.

The two boxing stars then had an intense stare down, but it was obvious there was also a mutual respect between the esteemed contenders.

The tension moved to the crowd as a shocking clip - exclusively filmed by SunSport - showed fans getting embroiled in a heated fracas.

The video showed three people wearing Canelo shirts getting involved in a heated melee with five others.

Some of them threw punches while others desperately tried to

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