The rumor, before the world turned upside down, was that unrestricted free agent Jaroslav Halak wanted to look at better options than the one-year concept the Bruins were considering. If the Bruins exceed the 2020-21 cap by some or all of Halak’s bonus, they would carry an overage in 2021-22. As a first-year player with the Bruins, Halak posted a.936 …