Chris Kunitz started Pittsburgh's third-period surge with his 18th goal of the season and Sutter beat Boston's Anton Khudobin twice in less than four minutes, including the game-winner with 2:03 remaining.
Marc-Andre Fleury stopped 14 shots for the Penguins, who broke loose late against the NHL's best defensive team.
Zdeno Chara and Tyler Seguin scored first-period goals for the Bruins. Khudobin made 31 saves and the Bruins kept Pittsburgh's high-powered offence in check until the final minutes of a matchup between two of the Eastern Conference's best teams.
I watched many times this year the series between the Russians and Canada in 1972, and he was a dominating player there. After I watched the tapes, I respect him a lot more because he turned the series around. He was the guy. In that time, he was the best in the world. It’s a big honor for me to tie him.
— Panthers forward Jaromir Jagr on scoring the 717th goal of his career to tie Phil Esposito for fifth on the NHL's all-time goals list after a 4-3 win vs. the Lightning on Sunday