Puck Previews: Kovalev back in Montreal; Hossa skates

Here are your Puck Previews: Spotlighting the key games in NHL action, news and views as well as general frivolity. Make sure to stop back here for the nightly Three Stars when the games are finished.Preview: Ottawa Senators (4-2-0) at Montreal Canadiens (2-4-0), 7 p.m. EST.Alexei Kovalev makes his first appearance inside Bell Centre since he signed with the Senators in the off-season. Expecting a mixed reaction, Canadiens fans would likely give a few extra cheers if Kovalev fails to improve on his has season total of two goals. Preview: Atlanta Thrashers (3-1-0) at Buffalo Sabres (4-0-1), 7 p.m. EST.Having not lost in regulation yet, the Sabres welcome a Thrashers team that beat Martin Brodeur(notes) and the New Jersey Devils last night. Patrick Lalime(notes) will start in net for the Sabres as Maxim Afinogenov(notes) returns to Buffalo for the first time hoping to help Atlanta continue their hot start. Preview: New York Rangers (6-1-0) at Toronto Maple Leafs (0-5-1), 7 p.m. EST. ...