BREAKING: New Changes To Defensive Pairings

The Chicago Blackhawks are practicing hard today in anticipation of tonight's match-up with the Calgary Flames.

The defensive pairings for the Blackhawks has been all over the place since the start of the 2016-2017 NHL regular season in an attempt to solidify certain pairings and experimenting with others.

Duncan Keith and Niklas Hjalmarsson will be getting the split as Brian Campbell will be on the first line with Keith for tonight's game.

Brian Campbell went from being on the third line to almost being a healthy scratch early on in the season and now he’s on the first line for tonight.

Michal Rozsival will be making his regular season debut as he hits the ice with Niklas Hjalmarsson as the third defensive pairing for the night.

Michal Kempny will be the healthy scratch for tonight's game with Trevor van Riemsdyk also missing in action due to an upper body injury.

Watch tonight as the Chicago Blackhawks take on the Calgary Flames at the United Center at 8:30 p.m. (ET).