The Ottawa Senators are back in the Nations Capital for a matchup against the St. Louis Blues! Brandon Piller and Ross Levitan have a full game day preview with Locked On and Look Out Players, Keys to Victory and we break down both teams lines. Linus Ullmark is your starter, Ridly Greig is playing on the top line and Zack Ostapchuk will make his season debut! Is it too early to call this game a “Must Win”?