This is source I found from another site, main source you can find in last paragraph
The Ottawa Senators will return to a normal twelve forward and six defencemen lineup tonight. It will be Gabriel Dumont’s first game with the Sens.
At forward the Sens will attempt to make things work with four full lines. The players set to play are: Tom Pyatt, Matt Duchene, Bobby Ryan, Ryan Dzingel, Derick Brassard, Mark Stone, Mike Hoffman, Jean-Gabriel Pageau, Alex Burrows, Nick Paul, Nate Thompson, Gabriel Thompson, and Gabriel Dumont.