Letang said, "You already have a chemistry going and we added a tremendous player with Mathew, who was just skating everywhere carrying the puck. I was just staying back making sure there was nothing happening behind us."
Barzal, who had one assist in the Metropolitan Division's 7-4 win against the Atlantic Division in the semifinals, was equally thrilled to play with Crosby and Letang.
"Sid just kind of said, 'Grab it and get us up the ice and he'll find a spot,' so, it was kind of cool," Barzal said. "Those guys would pass me the puck and they were working to get open and I was just trying to find them."
Sitting next to Crosby in the locker room was also exciting for Barzal, who leads the Islanders with 45 points (14 goals, 31 assists) in 49 games. He said the Penguins captain made him feel comfortable right away.
"It's obviously cool," Barzal said. "I had a chance to skate with him this summer and that was surreal, so coming here, he's such a nice guy and such a good guy to learn from. Just really cool me for me."