The team in each conference with the most postseason games played since 2008 and the two teams that played the most games against each other over the previous four seasons will be featured in a Wednesday Night Rivalry doubleheader.
Sidney Crosby and the Pittsburgh Penguins (26-12-7) welcome Patrick Kane and the Chicago Blackhawks (29-15-2) to Consol Energy Center in the early game (8 p.m. ET; NBCSN). Each team is within striking distance of first place in its division.
The Penguins and Blackhawks have combined to win the Stanley Cup three times in the past six seasons. The Penguins' 98 postseason games since the start of the 2007-08 season lead the NHL, and the Blackhawks' 94 are third (tops in the Western Conference).
The Los Angeles Kings (20-14-12) and San Jose Sharks (24-17-6) will play for the 44th time since the start of the 2010-11 season in the back half of the doubleheader (10:30 p.m. ET; NBCSN). San Jose has won 22 of 43 games, but Los Angeles has won two of the three playoff series, each in the past two seasons and in seven games.
Here are five things to watch during the doubleheader: