MONTREAL, September 19, 2025 — The stakes will be high — from start to finish — on October 30 at the Casino de Montréal. In addition to the WBA super welterweight world title fight between Mary Spencer and Mikaela Mayer, and the NABF and WBC Continental Americas super middleweight titles between Wilkens Mathieu and Shakeel Phinn, five other bouts — including three more title fights — will take place on the undercard.
First, three-time top-15 world contender Arthur ‘The Wolf’ Biyarslanov (19-0, 16 KOs) will make the 4th defense of his NABF super lightweight title against what’s expected to be his biggest test to date, former world champion Sergey ‘Samurai’ Lipinets (18-4-1, 13 KOs).
“Lipinets is as tough as they come, a veteran who’s seen it all, a former world champion. But that’s exactly what makes this fight exciting: experience versus hunger, the old lion against the young hungry wolf. Arthur wants to prove he’s ready to hunt with the big dogs, and this fight will show the world just that,” said Canadian Olympian Biyarslanov’s coach, Samuel Décarie-Drolet.
Also in action, Olympian and top-15 contender Mehmet Unal (13-0, 11 KOs) will make his first defense of the WBC Continental Americas light heavyweight title, in what’s expected to be an explosive matchup against Ralfs ‘The Train’ Vilcans (18-2, 7 KOs).
“Vilcans is a very solid technician who’s also extremely durable, as shown in the tough fight he gave Anthony Yarde! For Mehmet, this will be a real test to see where he stands among the elite of the division,” said Unal’s head coach and EOTTM’s director of development, Marc Ramsay.
In the first of five title fights that night, Montreal’s Christopher ‘Machine Gun’ Guerrero (15-0, 9 KOs) will defend his WBC Continental Americas welterweight title for the second time this year, against the opponent he was initially scheduled to face last June: brawler Williams Andres Herrera (17-4, 7 KOs). A tough fighter from La Calera, Argentina, Herrera has previously won the IBF Latino title. Along the way, he gave tough fights to Josh Wagner, Paddy Donovan, and more recently, Pat McCormack, with whom he went the distance in England. However, Guerrero is determined to send a message — to the boxing world, and to his opponent.
“I am planning to show that this year is mine to take. I want a top-5 ranking sooner than later and I think this fight — plus how decisively I am going to win it — will inch me closer than ever to the top of the division,” said Christopher Guerrero, currently ranked 19th by the WBC at 147 lbs.
Also on the card, two super featherweight matchups between four undefeated boxers. In an 8-round bout, Thetford Mines’ own Thomas ‘The Ghost’ Chabot (11-0, 8 KOs) returns to face Canadian lightweight champion Logan ‘The Toon Toon Terror’ Clouthier (6-0, 4 KOs). Then, kicking off the night in a 4-rounder, EOTTM’s prospect and junior amateur world champion Erik Israyelyan (2-0, 2 KOs) will put his perfect record on the line against Calgary prospect Dylan Schroeder (6-0, 4 KOs).
