Big mistake from Brand Marchand costs Boston an early goal.

This certainly wasn't the most graceful display of teamwork you're going to see at the National hockey League level.

On Tuesday night Boston Bruins goaltender Tuukka Rask and Bruins forward Brad Marchand turned what seemed like a fairly innocuous play into a big mistake that cost the Bruins an early goal.

With Rask in the back of his net trying to play the puck, Marchand ran him over while trying to cut back behind the net, resulting in both men losing their balance and giving the New York Islanders one of their easiest goals of the NHL season.

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