Kailer Yamamoto put away the winner with his second breakaway goal of the night as the Edmonton Oilers skated to a 7-4 win over the Calgary Flames in N-H-L pre-season play.
Earlier, Oilers defenceman Darnell Nurse signed a two-year contract with Edmonton, ending a lengthy stalemate.
The agreement with the restricted free agent is worth at $3.2-million (US) per season.
Also, rookie Jesperi Kotkaniemi impressed in his debut in a Canadiens sweater and Montreal scored three unanswered goals in 92 seconds to beat New Jersey 3-1.
Joe Morrow's goal in the third period lifted the Jets to a 2-1 victory over the Minnesota Wild.
The Leafs play Ottawa in Lucan on Tuesday night.