Primeau, the Canadiens' seventh-round pick in 2017, played on preseason game with Montreal. The 20-year-old goaltender stopped 16 of the 17 shots he faced in a 4-2 win over the New Jersey Devils on Monday at the Bell Centre.
For his part, Leskinen played two exhibition contests with the Canadiens. The rearguard, who signed a two-year contract with the Club on May 7, recorded three shots on net to go along with a plus-3 differential.
The 22-year-old Finn played in the Kraft Hockeyville game on Wednesday in Bathurst, NB against the Florida Panthers. The Habs won that game 4-3.
There are still 39 players at camp (23 forwards, 13 defensemen, 3 goaltenders), including the following injured players: Karl Alzner, Paul Byron, Noah Juulsen, Michael McCarron, Gustav Olofsson, Ryan Poehling and Joël Teasdale.