(VIDEO): Zac Rinaldo is levelled by a huge uppercut!

After Washington Capitals defenseman Matt Niskanen hit Philadelphia Flyers forward Sean Couturier knee-on-knee late in the first period of Sunday's game, you knew there would be some kind of retaliation. Sure enough, Capitals forward Jason Chimera leveled Flyers pest Zac Rinaldo with an uppercut to the jaw in the second period. These two teams hate each other and it looks the physicality is just going to escalate further. Both players were given five-minute major penalties for fighting, and Chimera was also assessed a two-minute minor for roughing.