Per NHL rule 46.21, Brady Tkachuk is set to be suspended for 1 game for receiving an instigator penalty in the last 5 minutes of regulation, while Head Coach DJ Smith would receive a $10,000 fine.
#GoSensGo will be appealing this ruling, per @SunGarrioch.
The Senators will appeal this ruling and may be able to overturn the suspension as Tuch had knocked Tkachuk over before the fight.
The Sabres defeated the Senators 6-4 and it is clear Tkachuk let his emotions get the best of him.