Ottawa Senators senior vice president of hockey operations Dave Poulin was all praise for team captain Brady Tkachuk.

In this edition of the Friday Four, Michael Amato looks at Mitch Marner walking, Dylan Cozens' role for the Senators, Brad Marchand's new threads and the heat on Andrei Kuzmenko.

Giroux scored an empty-net goal on two shots and added two hits in Thursday's 6-3 win over the Bruins.