All hell broke out during the official weigh-in for HBO's doubleheader from Colisée Pepsi in Quebec City. The televised portion of the card will open with a showdown between light heavyweight titlist Sergey Kovalev and dangerous Ismayl Sillakh.

During the weigh-in for the main event between World light heavyweight champion Adonis Stevenson and mandatory challenger Tony Bellew, the two fighters came together with their heads and things quickly escalated as harsh words were exchanged. It appeared that Bellew gave Stevenson a shove with his head and then all hell broke loose between the two camps.

Official Weights from Quebec City:

Adonis Stevenson: 174.4 lbs.

Tony Bellew: 175 lbs. 

Sergey Kovalev: 174.6 lbs.

Ismayl Sillakh: 174.4 lbs.