A total of 45 players have appeared in at least one game for the Bruins (23) and Blues (22) during the playoffs, including 37 (82.2 percent) who have yet to play in the Stanley Cup Final.
Six members of the Bruins have played on Stanley Cup-winning teams. Forward Patrice Bergeron, Brad Marchand and David Krejci, defenseman Zdeno Chara and goalie Tuukka Rask remain from Boston's 2011 championship team. Also, forward Joakim Nordstrom was a member of the Cup-winning 2015 Chicago Blackhawks but did not play in the Final.
Two other Bruins have Cup Final experience; defenseman Torey Krug played for Boston in the 2013 Final against the Blackhawks and defenseman John Moore played in the 2014 Stanley Cup Final with the New York Rangers against the Los Angeles Kings.
Forward David Perron, now in his third stint with St. Louis, is the only member of the Blues to skate in the playoffs this year who has played in the Stanley Cup Final. Perron had two points (one goal, one assist) in four games for the Vegas Golden Knights during their five-game loss to the Washington Capitals last year.
Two others have been a part of championship teams. Forward Oskar Sundqvist was a member of the Pittsburgh Penguins when they won the Stanley Cup in 2016, though he was primarily a healthy scratch, playing in two postseason games and none in the Final against the San Jose Sharks. Forward Jordan Nolan, who last played in the NHL on Jan. 21, had one assist in six games during the 2012 Final to help the Kings win the Cup for the first time. He was also a member of the Kings in 2014 but did not play in the Final.
St. Louis is the seventh team in the past 35 years to enter the championship round with no more than 10 games of Stanley Cup Final experience on its roster. The others are the 1985 Philadelphia Flyers (six games), the 2006 Edmonton Oilers (seven), the 2007 Ottawa Senators (seven), the 2011 Vancouver Canucks (seven), the 2016 San Jose Sharks (10) and the 2017 Nashville Predators (five).
Boston's top three point-producers from its 2011 Cup run are key members of the Bruins eight years later. Krejci led all NHL players with 23 points (12 goals, 11 assists) in 25 games. Bergeron had 20 points (six goals, 14 assists) in 23 games, and Marchand had 19 points (11 goals, eight assists) in 25 games.