Imam Khataev viciously landed hard head and body shots on Michal Ludwiczak for five-plus minutes Saturday night.

Their one-sided fight was understandably stopped after the Russian light heavyweight prospect dropped and pummeled Ludwiczak in the second round on the Artur Beterbiev-Callum Smith undercard at Videotron Centre. Khataev, who resides in Sydney, Australia, improved to 6-0 and recorded his sixth knockout.

Poland’s Ludwiczak (17-13-1, 9 KOs) is 1-5-1 in his past seven fights. He also lost by knockout or technical knockout for the seventh time in his 10-year pro career.

In the bout before Khataev’s TKO victory, Leila Beaudoin avenged her only professional loss.

Quebec’s Beaudoin beat Mexico’s Elizabeth Espinoza by unanimous decision in their eight-round rematch. Beaudoin (11-1, 1 KO) outboxed Espinoza (4-6-3, 1 KO) and won their second junior lightweight bout by scores of 78-74, 78-74 and 77-75.

Beaudoin brawled with Espinoza in their first fight and lost by big margins on two scorecards (79-73, 79-73, 78-76) eight months ago in Cuernavaca, Mexico. She made adjustments in their second meeting, used her jab effectively, moved well and countered Espinoza’s pressure with her boxing ability.

Beaudoin also appeared to land the two hardest punches during their eight-rounder.

A straight right by Beaudoin stopped Espinoza from coming forward 15 seconds into the sixth round. Earlier in their bout, Beaudoin drilled Espinoza with a right hand that affected her with about 10 seconds to go in the second round.

Earlier Saturday night, Wilkens Mathieu celebrated his 19th birthday by beating up Mexican veteran Jose Arias Alvarez for four rounds.

The promising super middleweight prospect landed an array of head and body shots against Alvarez and shut him out on the scorecards. Montreal’s Mathieu (6-0, 3 KOs) won by scores of 40-35, 40-35 and 40-36.

Mathieu tried his best to produce a knockout in the fourth and final round, but Alvarez (3-2, 1 KO) made it to the final bell. Mathieu nailed Alvarez with a left hook that knocked him into the ropes and forced him to hold with just under 1:10 left in their bout.

Mathieu’s right to the side of Alvarez’s head and subsequent shove made Alvarez touch the canvas with his right glove, which referee Alberto Padulo Jr. counted as a knockdown with 1:06 remaining in the second round.

Mathieu’s right rocked Alvarez with a little less than 1:50 on the clock in the opening round. Another thudding right by Mathieu made Alvarez hold him with just under 35 seconds to go in the first round.

In the bout before Mathieu’s win, Mehmet Unal took out Dragan Lepei in the first round.

The hard-hitting Turkish light heavyweight prospect dropped and stopped the Italian veteran 57 seconds into their eight-round bout on the Artur Beterbiev-Callum Smith undercard at Videotron Centre. Unal (8-0, 7 KOs) caught Lepei on the top of his forehead with a sweeping left hook that sent Lepei to his gloves and knees 49 seconds into their bout.

Lepei (22-7-2, 10 KOs, 1 NC) beat the count, but couldn’t stand up straight and referee Martin Forest didn’t allow him to continue. He lost by knockout or technical knockout for the fourth time in 10 years as a pro.

In the previous fight Saturday night, Christopher Guerrero remained unbeaten by out-landing fellow Mexican Sergio Herrera to the head and body for much of their eight-round bout.

The Mexican-born, Montreal-based Guerrero was more active and accurate and won their junior middleweight match by unanimous decision. Guerrero (10-0, 5 KOs) won by scores of 79-73, 79-73 and 78-74.

The more skillful Guerrero boxed beyond the fifth time for the first time as a pro, slowed down somewhat during the later rounds and apparently fought through an injury to his right shoulder. Herrera (7-4, 4 KOs) has lost back-to-back bouts on points, but he has not been knocked out in 11 professional fights.

In the first fight Saturday, French middleweight prospect Moreno Fendero knocked out Mexico’s Victor Huge Flores in the first round of a fight that was scheduled for four rounds.

Fendero (3-0, 2 KOs) dropped Flores (7-3, 3 KOs) twice – first with a straight left hand and again with a right hook – before their fight was stopped 2:16 into the opening round.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.