The Lightning actually lost Game 5 of the 2020 Cup Final against the Dallas Stars last year in double overtime. It was 3-2, the same score as Wednesday. They also blew a one-goal lead in the third period against the Stars, just like they did against the Islanders.
Tampa Bay won 2-0 in Game 6 to win the Stanley Cup.
The same thing also happened a round earlier against the Islanders, when the Lightning had a 3-1 lead in the Eastern Conference Final but lost Game 5 in double overtime 2-1. They won Game 6 in overtime 2-1.
Tampa Bay has not lost back-to-back games in the playoffs since losing four straight against Columbus in 2019, going 13-0 in games following a loss.
"All these games we've played, we've clearly played the most games we have in a calendar year of any team in the League, but it's prepared us for times like this, or it should have," Cooper said.
The Lightning have played 98 games, the most of any team since the League returned to play following the COVID-19 pause last season, including 42 in the playoffs, 17 this season.
But none was a Game 7. None was a win-or-go-home game.
Tampa Bay hasn't won when facing elimination since defeating the New York Rangers 2-0 in Game 7 of the 2015 conference final.
The Lightning lost 2-1 to the Pittsburgh Penguins in Game 7 of the 2016 conference final and 4-0 to the Washington Capitals in Game 7 of the 2018 conference final. They had a 3-2 lead in each series.
But Hedman and forwards Stamkos, Tyler Johnson, Alex Killorn and Nikita Kucherov all played each of Tampa Bay's past three Game 7s. Andrei Vasilevskiy was the starting goalie against the Penguins and Capitals; he backed up Ben Bishop against the Rangers.
Hedman and Stamkos each has played six Game 7s. Defenseman Ryan McDonagh has played eight, including for the Rangers against the Lightning in 2015. Johnson, Killorn, Kucherov and Palat each has played four.
Kucherov left with an undisclosed injury at 2:22 of the first period Wednesday, and his status for Game 7 is unknown. He leads the NHL with 27 points (five goals, 22 assists) in 17 games in the playoffs.
"I think with two quality teams like this you kind of expect something like this, you expect a series like this," Cooper said. "You sit here right now minutes after you lose a game in overtime, it stings, but in the end a lot of good things come from tonight. Hey, we're one win away from going to the Stanley Cup Final. If you were going to tell me that I would be like, '[Darn], I'll take that.' So here we are."