Fortunately, Dunn can be acquired with either one of those options. Dunn is set to become a restricted free agent at the end of the season. Given the Blues cap troubles, having roughly $2 million in cap space with Alex Pietrangelo and Vince Dunn to sign, they will need to move out a significant amount of salary to get both under contract. The Canadiens could step in here and offer sheet Vince Dunn to a contract worth between $3 million to $4 million per season on a four or five-year deal. At this point, it would be something the Blues would not be able to match. That would put them above the salary cap ceiling and Pietrangelo is sure to cost at least double that amount.
Read more here: https://lastwordonhockey.com/2020/07/18/montreal-canadiens-offseason-target-vince-dunn/