Luc Dubois scored, Logan Thompson made 18 saves and the NHL-leading Washington Capitals beat the Pittsburgh Penguins 4-1 for their fourth consecutive victory.

Aliaksei Protas and Pierre-Luc Dubois had a goal and an assist each and Logan Thompson made 18 saves in the Washington Capitals' 4-1 win over the visiting Pittsburgh Penguins on Saturday night.

The Penguins and Capitals renewed arguably the highest-profile rivalry of the salary-cap era on Saturday night.

One night after getting a goalie goal, the Pittsburgh Penguins (19-21-8) struggled to get a skater to score. The revamped and increasingly dominant Washington Capitals (31-10-5) smothered the Penguins’ every offensive hope and got just enough offense to pin down the Penguins for a 4-1 at Capital One Arena Saturday.