The Boston Bruins face the Ottawa Senators on Tuesday night as their big week continues. The Senators only are four points ahead of the Bruins in the Atlantic Division, and Erik Karlsson has contributed both offensively and defensively for Ottawa.

The Senators defenseman leads the NHL in blocked shots with 194 and only is five points behind San Jose Sharks defenseman Brent Burns, who leads the Norris Trophy race. The Bruins will have to find a way to get shots off around Karlsson in order to earn a win Tuesday night.

For more on Karlsson, check out the video above from “Bruins Face-Off Live,” presented by EchoStor Technologies.

Thumbnail photo frombMarc DesRosiers/USA TODAY Sports Images

Thumbnail photo via Ottawa Senators defenseman Erik Karlsson (65) follows the puck in the first period agains the Pittsburgh Penguins at the Canadian Tire Centre. Mandatory Credit: Marc DesRosiers-USA TODAY Sports