The NHL is looking to avoid travel restrictions during the 2021 Stanley Cup Playoffs, but its negotiations with the Canadian government could extend through the opening rounds of the playoffs until June, according to Greg Wyshynski of ESPN.

"It's going to be down to the wire," a source said.

Canada currently requires anyone traveling into the country to quarantine for 14 days amid the COVID-19 pandemic. This would be impossible in the middle of a playoff series that would presumably feature the two teams traveling back and forth between home games. 

NHL commissioner Gary Bettman said Tuesday the league can alter the plans if necessary.

"If we can't travel in Canada, either as among the provinces or from the U.S. to Canada and back, we'll make whatever adjustments we have to do to get the playoffs completed. But obviously, as it has been, it's wildly unpredictable," Bettman said.