It's not that Laf has to quarantine after the WJC, its that he will have to quarantine for 14 days upon entering Canada from the US BEFORE the tournament starts, He will also have to, like everyone else entering the Edmonton bubble ( on Dec 13), quarantine in a hotel for an additional 4 days before being released into the bubble. So Laf will have to quarantine for 18 days total before being allowed to play. Hopefully it happens but I doubt the Rangers want him not skating or properly working out for 18 days but I could be wrong.