(VIDEO): NHL star delivers blindside elbow to rising star's head.

Many players are passionate about representing their respective countries, but on occasion the passion boils over and mistakes are made. Jack Eichel learned this first hand during the United States semifinal matchup against Russia at the World Championship in Prague on Saturday. Eichel, who is the projected second-overall pick in the upcoming NHL entry draft, was the recipient of an elbow to the back of the head by none other that Pittsburgh Penguins star forward Evgeni Malkin late in the first period. Malkin was assessed a minor penalty for elbowing on the play, but the Americans failed to capitalize on the man advantage. The winner moves on to face Canada in the Gold medal game on Sunday. That's one heck of an initiation.