As of right now, the Montreal Canadiens have 10 defencemen under contract for the 2019-20 season, and six pending free agents at the position. That doesn’t even include prospects like Scott Walford and Jarret Tyszka - who can be signed until June 1, nor any potential signings or additions come July 1 or before.
Needless to say, there can be a lot of changes to the Canadiens blue line coming and Mikey Reilly, who spent the entire 2018-19 season on the NHL roster, will be front and centre in any decisions that are made.