Best photos from the 2023 Winter Classic

The Boston Bruins rallied to beat the Pittsburgh Penguins 2-1.

The Boston Bruins celebrate their victory.

Boston Bruins goaltender Linus Ullmark, right, who made 26 saves, celebrates with backup Jeremy Swayman.

Jake DeBrusk scored both Bruins goals in the game.

Boston Bruins defenseman Derek Forbort collides with Pittsburgh Penguins right wing Rickard Rakell during the third period.

Boston Bruins left wing Brad Marchand (63) talks with linesman Michel Cormier at the end of the second period. Offsides was mistakenly called on a Bruins odd-man rush.

Boston Bruins left wing Jake DeBrusk (74) and Pittsburgh Penguins defenseman Jan Rutta (44) shove each other after whistle during the second period.

Pittsburgh Penguins right wing Kasperi Kapanen (42) celebrates with his teammates after scoring the game's opening goal against the Boston Bruins during the second period.

Pittsburgh Penguins center Sidney Crosby shoots the puck past Boston Bruins defenseman Charlie McAvoy.

Pittsburgh Penguins goaltender Casey DeSmith blocks a shot from Boston Bruins center Charlie Coyle.

Pittsburgh Penguins left wing Danton Heinen checks Boston Bruins defenseman Connor Clifton into the boards during the first period.

Pittsburgh Penguins center Sidney Crosby skates with the puck past Boston Bruins defenseman Brandon Carlo (25) and defenseman Hampus Lindholm (27).

Pittsburgh Penguins goalie Tristan Jarry tends the net against the Boston Bruins. He left at 15:30 of the first period with an injury.

Boston Bruins goaltender Linus Ullmark deflects a shot from Pittsburgh Penguins center Evgeni Malkin during the first period.

Boston Bruins players, wearing vintage Red Sox uniforms, walk onto the field at Fenway Park. The Pittsburgh Penguins wore vintage Pirates uniforms while entering the stadium.

Boston Bruins left wing Brad Marchand, right, talks with general manager Don Sweeney before Monday's game.

Pittsburgh Penguins center Sidney Crosby walks to the ice for Sunday's practice at Fenway Park.

The Pittsburgh Penguins practice a day before the Winter Classic.