Toronto Maple Leafs goaltender Ilya Samsonov, right, makes a save as Boston Bruins' Brad Marchand (63) looks for a rebound during second-period action in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Nathan Denette/The Canadian Press via AP)
Toronto Maple Leafs' Mitch Marner (16) scores on Boston Bruins goaltender Jeremy Swayman during the third period in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto on Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Boston Bruins goaltender Jeremy Swayman, left, and goaltender Linus Ullmark, right, celebrate after defeating the Toronto Maple Leafs in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Toronto Maple Leafs' John Tavares (91) takes an elbow from Boston Bruins' Brad Marchand (63) during first-period action in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Boston Bruins' Brad Marchand (63) checks Toronto Maple Leafs' Tyler Bertuzzi (59) during first-period action in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Nathan Denette/The Canadian Press via AP)
Boston Bruins goaltender Jeremy Swayman (1) falls over Mason Lohrei (6) during the third period in Game 4 of the team's NHL hockey Stanley Cup first-round playoff series against the Toronto Maple Leafs in Toronto on Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Toronto Maple Leafs' Mitch Marner (16) is stopped by Boston Bruins goaltender Jeremy Swayman (1) as Bruins' David Pastrnak (88) and Pavel Zacha (18) defend during the first period in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto on Saturday, April 27, 2024. (Nathan Denette/The Canadian Press via AP)
Toronto Maple Leafs' David Kampf (64) battles with Boston Bruins' Pavel Zacha (18) and Brandon Carlo (25) during second-period action in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Boston Bruins' James van Riemsdyk, center, celebrates his goal as Toronto Maple Leafs' Joel Edmundson (20) and TJ Brodie (78) react during the first period in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto on Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Toronto Maple Leafs head coach Sheldon Keefe, top front right, reacts on the bench with, from bottom left to right, Calle Jarnkrok, Pontus Holmberg and Ryan Reaves during third-period action against the Boston Bruins in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Frank Gunn/The Canadian Press via AP)
Boston Bruins' Brad Marchand (63) celebrates after his goal against the Toronto Maple Leafs with Charlie McAvoy (73) during second-period action in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Nathan Denette/The Canadian Press via AP)
Boston Bruins goaltender Jeremy Swayman, left, and goaltender Linus Ullmark, right, celebrate after defeating the Toronto Maple Leafs in Game 4 of an NHL hockey Stanley Cup first-round playoff series in Toronto, Saturday, April 27, 2024. (Nathan Denette/The Canadian Press via AP)