Toronto's game at the Seattle Kraken on Sunday and Vancouver's game against the Arizona Coyotes on Sunday were also postponed.
The games have not been rescheduled.
"I wasn't totally surprised. I was a little bit disappointed," Canucks general manager Jim Rutherford said Saturday. "… From a team point of view, this was going to be a really good test for us. Every game is a test, but the Maple Leafs are one of the top teams in the league and we would have got a good look at how our team responded against them, so we're disappointed, but safety comes first, the safety of the players, the safety of the fans, and I think this is the right decision."
The Maple Leafs have seven players in NHL COVID-19 protocol after three, along with coach Sheldon Keefe, were added Saturday. Forwards John Tavares, Alexander Kerfoot, Wayne Simmonds and Jason Spezza were added Friday, and defensemen TJ Brodie and Travis McDermott, and goalie Jack Campbell were added Saturday.
Toronto is next scheduled to host the St. Louis Blues on Thursday.
"When I spoke to [NHL] Deputy Commissioner Bill Daly, he said our next two games were postponed but that we were not being shut down," Toronto general manager Kyle Dubas said. "We've got test results coming back here today, but that'll be very instructive of where we are at and how we've come through."
The Canucks have five players in protocol: defensemen Tyler Myers, Luke Schenn, Tucker Poolman and Brad Hunt, and forward Juho Lammikko. Vancouver is next scheduled to play at the San Jose Sharks on Tuesday.
"As you know with these spreads, there's usually one or two guys a day," Rutherford said. "It seems that's the way it's going now. We'll keep our fingers crossed there's not any more, but we'll update you when we get the tests back. … I've talked to our players that are in protocol, talked directly to them, and they're all telling me the same thing as what you heard from the Maple Leafs, that their symptoms are very mild."
The NHL has postponed 29 games involving 22 teams this season after announcing Saturday that the Boston Bruins and Nashville Predators would be shut down through the NHL holiday break because of COVID-19 concerns. The Calgary Flames, Colorado Avalanche and Florida Panthers each had their games postponed through the holiday break Friday.
"We can practice if we want," Rutherford said. "I don't know what [coach Bruce Boudreau] will decide there, but we can have fairly normal activities except play the games. I would like to see us play a full season and figure out a way to do that, but for me, safety comes first."
The Flames, who have 19 players, three coaches and nine support staff in protocol, have had six games postponed, the Avalanche and Bruins four, and the Predators and Panthers three. The Maple Leafs-Flames game scheduled for Thursday was among those previously postponed.
The NHL had 55 games postponed last season; each was made up as part of a 56-game schedule.
"It has not been brought up to us pausing the league entirely," Dubas said. "I'm hopeful that's not necessary, but every day is a new day and it's impossible to say what tomorrow will bring in terms of the evolution of this virus."
NHL.com independent correspondents Kevin Woodley and Dave McCarthy contributed to this report
