Crosby was a big part of it. He certainly doesn't need any more proof to know that he is hard to defend, sometimes impossible to stop, but he got it anyway on Monday. He was the best player on the ice in the biggest game of the season to date. You wonder what kind of carry-over effect that will have on Crosby and on the Sharks.
"You get this opportunity and you just want to leave it out there," Crosby said. "You know there's only a couple weeks left in the season. That's the bottom line. You understand the situation. There's nothing to save it for."
Penguins rookie goalie Matt Murray should feel pretty good about himself, too.
Murray never doubted his ability or that he belongs here, but to get a win with 24 saves, gaining firsthand experience of what this level is all about, should only benefit the 22-year-old as the series goes on.
"Once the puck drops it's just another hockey game," Murray said.
Rookie forwards Conor Sheary and Bryan Rust realized the same thing. They discovered that what they have been doing well for three rounds, or better yet, three months, still works in the Cup Final.
Like Murray, Sheary and Rust didn't doubt it, but having proof matters. They scored in the Stanley Cup Final.
"You don't necessarily prepare for the Stanley Cup Final," Crosby said. "You can go through certain things that help you, but until you're there I don't think anybody knows how you're going to react, including yourself. Those guys have handled everything in stride and continue to do that here."
This proof thing works the other way too. The Penguins also saw in Game 1 what happens when they get careless with the puck and when they get undisciplined.
San Jose adjusted after the first period, and turnovers and a power-play opportunity that ended with Tomas Hertl putting the puck past Murray at 3:02 got them on the board. Patrick Marleau also scored at 16:12 to send the game into the second intermission tied 2-2.
"I think once that second period hit, we kind of realized that they're a good team too and they can score too," Sheary said. "In the third, we just got back to playing hard and playing our game."
Their game works, as they found again Monday. Having proof always helps.
"It does," Maatta said. "It gives us trust in our system, in our game. When we play the game the right way, [it shows us] how good we are. And being up 1-0, it definitely gives you that confidence boost."