Malcolm Subban was born on December 21, 1993 in Toronto, Ontario. He comes from an athletic family. His father, Karl, was a basketball star at Lakehead University and his sister, Natassia, ended he collegiate basketball career as the all-time leading scorer in Ontario University Athletics. In addition, Malcolm's younger brother, Jordan, was drafted by the Vancouver Canucks and his older brother, P.K., is a Norris Trophy-winning defenceman with the Montreal Canadiens.
A star goaltender for the Belleville Bulls, Subban was the top ranked North American netminder heading into the 2012 NHL Entry Draft. He was ultimately selected in the first round, 24th overall, by the Boston Bruins.
Subban would begin his professional career in the American Hockey League with the Providence Bruins. He would record 15 wins for the club in 33 games, posting an impressive 2.31 goals against average and a solid .920 save percentage.
Subban would also spend the majority of his second professional season with Providence, though he did receive his first taste of NHL action. On February 20th, 2015, he made his NHL debut against the St. Louis Blues, allowing three goals on six shots in a losing cause.