MONTREAL — El Tigre roars.

Highly touted junior welterweight Jhon Orobio dominated teak-tough Sebastian Ezequiel Aguirre to win an 8-round unanimous decision at the Montreal Casino, Montreal on ESPN+ and punchinggrace.com.

Orobio (13-0, 11 knockouts), who was forced to go the distance for only the second time, had his way with his game Argentine opponent winning 80-71 on all three scorecards.

The Colombian-born fighter, who now lives in Montreal and trains under esteemed coach Marc Ramsay started aggressively and buzzed Aguirre (19-7, 12 KOs). However, late in the round, the dangerous Aguirre landed a heavily looking right hand high on Orobio's head. It had no affect and Orobio immediately fired back and had Aguirre retreating.

From then on Orobio was defensively responsible but also dictated the action behind a stiff jab and mixed in a savage body attack but try as he might Aguirre, who has only previously been stopped once by Orobio's stablemate Steve Claggett, wouldn't go down.

Orobio had Aguirre in trouble late in the final round but Aguirre hung tough and heard the final bell.

In middleweight action, Alexandre Gaumont stopped Mathis Lourenco in the fourth round.

Gaumont (13-0, 9 KOs) was given an early test but used his jab to keep Lourenco (13-6-3, 6 KOs) honest. The Frenchman looked to get on the inside.

The ending came out of the blue, Gaumont threw three punches to head and body and landed a devastating right uppercut the heavily dropped Lourenco. To his immense credit, he some how made it to his feet but was on unsteady legs when referee Alain Villeneuve waved off the fight at 1:40 of the round.

Rising super middleweight Moreno Fendero (10-0, 8 KOs) continued his impressive form stopping Mykola Vovk (15-6, 9 KOs) in the second-round.

The French boxer, who was taking part in his second eight-rounder, proved far too strong for Vovk and dropped him twice before referee Yvon Goulet called a halt at x.xx of the round.

Former amateur standout Erik Israyelyan made a successful professional debut stopping Richard Bernath (0-2) in the opening round.

Israyelyan, 20, who won gold at the 2022 World Youth Championships, dropped Bernath twice en route to claiming the stoppage via bodyshot at 1:34 of the opening round of their junior lightweight bout.

Canadian Olympic bronze medalist Wyatt Sanford had been tabbed to make his professional debut, but opponent Shawn Archer wasn't able to fight. A new date is being worked on for Sanford to fight.