Jakub Voracek and Wayne Simmonds added goals, and Steve Mason made 32 saves to help Philadelphia improve to 12-2-1 in its last 15 games to maintain its hold on second place in the Metropolitan Division.
Jaden Schwartz opened the scoring 6:23 into the game, finishing a 2-on-1 short-handed opportunity after taking a feed from Kevin Shattenkirk. Schwartz's wrist shot from close range went under the glove of Mason.
St. Louis needed one point in the game to become the first Western Conference team to clinch a playoff spot.
There was a lot of talk off the ice. From a player's standpoint, that's not the talk in the room. GMs make decisions, coaches make decisions, but as a team you have to come together and be ready to go, and we are.
— San Jose Sharks forward Tommy Wingels on his team's approach entering training camp