VIDEO: Zdeno Chara lays out Trevor Smith; forensic evidence left behind

The wrong end of a Zdeno Chara body check is not where anyone wants to be.

This was made evident once again Saturday, as the hulking Boston Bruins defenseman dropped Trevor Smith of the Toronto Maple Leafs with a hard hit along the boards, leaving behind a trail of blood.

Smith was forced to leave the game with what was called an upper-body injury.