On 19 September 2009, Stefanovich was assigned to the Toronto Marlies, the AHL affiliate of the Maple Leafs,[1] and shortly after demoted back to junior.

[4] During his second season in the Russian second tier league, the VHL, with Dizel Penza, Stefanovich was provisionally suspended on 20 November for failing an anti-doping test.

[5] He played no further part in the season with Dizel and on 27 April 2015, was given a two-year ban backdated to 10 November, for the doping violation.

[6] On 26 August 2015, he returned to North American and signed a one-year ECHL contract with the Rapid City Rush.

He also participated at the 2010 IIHF World Championship as a member of the Belarus men's national ice hockey team.