Born in Trois-Rivières, Mikael Zewski has been in boxing since a very young age. A star of the amateur scene in Quebec and Canada, he has won many titles and participated in many provincial, national and international competitions, including the Golden Gloves and Provincial Qualifiers, several Canadian Championships, various international tournaments, the Pan-American Youth championship, as well as the Junior and Senior World Championships.

Led by his father, Jean Zewski, he concluded his amateur career with a 138-29 record, while facing the bests.

His biggest feat was to defeat Beijing Olympic silver medalist, Cuba's Carlos Banteaux, at the 2009 World Championship in Italy. Mikael was fifth in the tournament.

Spotted by the American group Golden Boy Promotions, he began his professional career in the United States in 2010.

After a victory over world champion Robert Guerrero's tough training partner, Californian fighter Clint Coronel (4-1-2) on April 9, 2011, Zewski and Golden Boy Promotions decided to split up.

Another major American promotional group, Top Rank, decided to put the Quebecer under contract.

On June 28, 2014, in Omaha, Nebraska, Zewski won his first professional title by stopping Ghana's Prince Doku Jr (18-5-0) in the fourth assault to secure the NABF welterweight belt.

On December 13, 2014 at The Cosmopolitan in Las Vegas, he defended his crown against the slick American Jeremy Bryan (17-4-0) with a 10-round majority decision win.

His only career loss was a unanimous 10-round decision against unbeaten Russian Konstantin Ponomarev (27-0-0) on May 1, 2015 in Las Vegas. The latter has still not suffered defeat and is very well ranked by the four major sanctioning bodies.

On June 3 at the Bell Center on the undercard of the light-heavyweight world championship fight between Adonis Stevenson and Andrzej Fonfara, Zewski defeated Mexican tough guy Fernando Silva (15-10-3) by unanimous decision in eight rounds.

It was a first outing for him in 20 months, after healing a left elbow injury.Zewski later impressed the gallery at the Casino Cabaret in Montreal, where he first stopped Argentine fighter Enrique Martin Escobar (17-3-0) in the second round on Feb. 15 before delivering what many see as the fight of the year on the Canadian scene against the experienced Mexican Jose de Jesus Macias (23-7-2), where he won a unanimous decision after a furious fight.

Four other significant victories allowed him to put on several belts to his waist.

His last fight against dangerous Lithuanian Egidijus Kavaliauskas (21-1-1) in Las Vegas went rather badly with a loss before the limit. The challenge was great.

At just 32 years old, seasoned Mikael Zewski can still look forward to a world title. He will certainly have the knife between his teeth when he returns to the ring, maybe even at his hometown of Trois-Rivières.