Now it's not clear whether or not the Toronto Maple Leafs scouts were there to watch the Montreal Canadiens or the Los Angeles Kings, but there is a possibility that we see a trade between the two rivals.
There were multiple other teams as well including the Washington Capitals, the Tampa Bay Lightning, two Philadelphia Flyers scouts, Ottawa Senators, Colorado Avalanche, Los Angeles Kings, Columbus Blue Jackets, Chicago Blackhawks, and the Calgary Flames.