Jake Guentzel assisted on two goals and then scored the game-winner in less than five minutes of the third period as the visiting Pittsburgh Penguins wiped out a two-goal deficit for a 3-2 win over the Washington Capitals Thursday night in Game 1 of their Eastern Conference semifinal.

Jonathan Marchessault had a goal and two assists, and William Karlsson and Reilly Smith each added three assists as the expansion Vegas Golden Knights crushed the San Jose Sharks 7-0 in the first game of the NHL Western Conference semifinals on Thursday night in Las Vegas.