(Taken From Wikipedia)
Lemieux began boxing at the age of nine. He won the Canadian Amateur Championship three times. Lemieux is currently trained by Marc Ramsay. Previously, he was trained by Russ Anber and was featured with Anber in DVD tutorial series Title Boxing as a teenager. He also featured with Anber in the Rival Box tips series. Lemieux was never interested in making a bid to join the Canadian Olympic boxing team which was woefully under-supported in the run-up to the Beijing Olympics. Instead, he and Russ Anber viewed the Olympic program as a dead-end which would have him competing against boxers with vastly more experience while limiting his training prospects in ways detrimental to a fighter with professional aspirations.
Although Lemieux planned to turn pro at 17, he was required to wait until he turned 18 because of Canadian Boxing Federation rules. Quebec-based promotion company Groupe Yvon Michel (GYM) was quick to sign him to a multi-fight contract, pitting him against opponents in four-round bouts that quickly became crowd favorites in Montreal. Lemieux became a proven commodity, fighting televised six-rounders on ESPN’s Friday Night Fights and filling out the undercard during several championship events.