Jonathan Marchessault and William Karlsson have struggled to find the back of the net since Dec. 22, scoring a combined three goals over 12 games. Vegas' dynamic top-line forwards topped that Saturday night. Marchessault scored three goals for his second career hat trick and Karlsson got his 16th of the season to help lead the Golden Knights to a 7-3 victory over the Pittsburgh Penguins. Read more http://www.espn.com/nhl/recap?gameId=401045070