Tuukka Rask has been calm, cool and collected throughout the Boston Bruins’ lengthy playoff run.

Don’t expect that to change Wednesday when 60 minutes of hockey will decide the new king of the NHL.

The Bruins and St. Louis Blues are set to battle in Game 7 of the Stanley Cup Final at TD Garden, marking the first winner-take-all clash in the championship round in eight years. It only would be natural for a player to have at least a concern or two heading into a game of this magnitude, but Rask’s mindset appears to be free of uneasiness. When asked Tuesday what he’s worried aboutfor Game 7, the B’s netminder responded with unabashed composure.