This is why it’s tough for the Habs to recall Caufield unless there was an injury. I had posted this in the pre-game thread also.
From the CBA:
Following the conclusion of the Regular Season, no Player may be Recalled from Loan to a club of any league affiliated with the NHL, except that:
(i) a Club may exercise an unlimited number of additional regular Recalls, provided that it may have no more than three (3) Players on its Active Roster who were Recalled by way of regular Recall after the Trade Deadline. However, if a Club has Recalled four (4) Players pursuant to Section 13.12(l) above, such Club will instead be permitted to retain those four (4) Players on its Active Roster following the conclusion of the Regular Season.
The Habs have already used their 3 post deadline recalls, if they use their 4th on Caufield they lose their ability to have an unlimited number of additional regular Recalls in the playoffs.