Claude Giroux scored 1:59 into overtime and the Philadelphia Flyers scored three straight goals in the rain to beat the Pittsburgh Penguins 4-3 on a soggy Saturday night at Lincoln Financial Field.

The Flyers and Penguins took one of the NHL's more heated rivalries outdoors and into prime time as part of the Stadium Series showcase. The rink that stretched from 30-yard line to 30-yard line needed a squeegee more than a Zamboni, but nearly 70,000 fans stuck around the home of the Eagles to watch the Flyers play the marquee game on their schedule.

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Philadelphia Flyers goaltender Brian Elliott watches a puck shot by Pittsburgh Penguins' Justin Schultz go into the goal to score during the second period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Claude Giroux scored 1:59 into overtime and the Philadelphia Flyers scored three straight goals in the rain to beat the Pittsburgh Penguins 4-3 on a soggy Saturday night at Lincoln Financial Field.

Officials separate Philadelphia Flyers' Wayne Simmonds, right, and Pittsburgh Penguins' Jared McCann (19) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

With rain pounding the ice in third period, the Flyers got going. James van Riemsdyk, playing in his record sixth outdoor game, made it 3-2 on a power-play goal with 3:04 left. Jake Voracek tied it at 3-all with 19.7 seconds left, sending what was left of the sellout crowd into a frenzy.

Philadelphia Eagles cach Doug Pederson takes part in a ceremonial puck drop with Philadelphia Flyers' Claude Giroux, left, and Pittsburgh Penguins' Sidney Crosby before an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Philadelphia Eagles cach Doug Pederson takes part in a ceremonial puck drop with Philadelphia Flyers' Claude Giroux, left, and Pittsburgh Penguins' Sidney Crosby before an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Philadelphia Flyers' Ivan Provorov (9) tries to slip past Pittsburgh Penguins' Kris Letang (58) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

Philadelphia Flyers' Ivan Provorov (9) tries to slip past Pittsburgh Penguins' Kris Letang (58) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

Pittsburgh Penguins' Sidney Crosby, left, and Justin Schultz celebrate after Schultz's goal during the second period of an NHL Stadium Series hockey game against the Philadelphia Flyers at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

Pittsburgh Penguins' Sidney Crosby, left, and Justin Schultz celebrate after Schultz's goal during the second period of an NHL Stadium Series hockey game against the Philadelphia Flyers at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

The Flyers gave them a win to remember.

Philadelphia Flyers goaltender Brian Elliott watches a puck shot by Pittsburgh Penguins' Justin Schultz go into the goal to score during the second period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Philadelphia Flyers goaltender Brian Elliott watches a puck shot by Pittsburgh Penguins' Justin Schultz go into the goal to score during the second period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

With rain pounding the ice in third period, the Flyers got going. James van Riemsdyk, playing in his record sixth outdoor game, made it 3-2 on a power-play goal with 3:04 left. Jake Voracek tied it at 3-all with 19.7 seconds left, sending what was left of the sellout crowd into a frenzy.

Giroux, the Flyers' All-Star captain, made sure the game didn't last much longer. He slipped the winner past Matt Murray, and the Flyers celebrated in the mist. Giroux said he felt "goosebumps" in a stadium where he's a regular at Eagles games.

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Officials separate Philadelphia Flyers' Wayne Simmonds, right, and Pittsburgh Penguins' Jared McCann (19) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Officials separate Philadelphia Flyers' Wayne Simmonds, right, and Pittsburgh Penguins' Jared McCann (19) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Philadelphia Eagles cach Doug Pederson takes part in a ceremonial puck drop with Philadelphia Flyers' Claude Giroux, left, and Pittsburgh Penguins' Sidney Crosby before an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Philadelphia Eagles cach Doug Pederson takes part in a ceremonial puck drop with Philadelphia Flyers' Claude Giroux, left, and Pittsburgh Penguins' Sidney Crosby before an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Rourke)

Philadelphia Flyers' Ivan Provorov (9) tries to slip past Pittsburgh Penguins' Kris Letang (58) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

Philadelphia Flyers' Ivan Provorov (9) tries to slip past Pittsburgh Penguins' Kris Letang (58) during the first period of an NHL Stadium Series hockey game at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

Pittsburgh Penguins' Sidney Crosby, left, and Justin Schultz celebrate after Schultz's goal during the second period of an NHL Stadium Series hockey game against the Philadelphia Flyers at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)

Pittsburgh Penguins' Sidney Crosby, left, and Justin Schultz celebrate after Schultz's goal during the second period of an NHL Stadium Series hockey game against the Philadelphia Flyers at Lincoln Financial Field, Saturday, Feb. 23, 2019, in Philadelphia. (AP PhotoMatt Slocum)