Nazem Kadri has been suspended three games by the NHL Department of Player Safety.
The Toronto Maple Leafs forward was disciplined for boarding Boston Bruins forward Tommy Wingels in Game 1 of the Eastern Conference First Round on Thursday.
Kadri will not be eligible starting in Game 2 on Saturday (8 p.m. ET; NBC, CBC, TVAS). Toronto lost Game 1 of the best-of-7 series, 5-1.
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"We lost guys all year long," Maple Leafs coach Mike Babcock said Friday. "Dig in and play."
The incident occurred 8:14 into the third period. Kadri was given a five-minute penalty for charging and a game misconduct. Wingels left the game with an undisclosed injury.
Kadri was third on the Maple Leafs with 32 goals during the regular season (James van Riemsdyk, 36; Auston Matthews, 34). He would be eligible to return for Game 5 next Saturday, if it is necessary.
At Toronto practice Friday, Patrick Marleau took over as center on the second line with usual linemate Mitchell Marner. Zach Hyman took Kadri's place.
Video: Kadri suspended three games for boarding
"I've gone back and forth all year. It's a little bit different, but should be fine," Marleau said of playing center.
Rookie forward Andreas Johnnson is likely to make his NHL playoff debut on the fourth line with Tomas Plekanec and Kasperi Kapanen.
Wingels was being evaluated, Bruins coach Bruce Cassidy said. If injured forward Riley Nash and Wingels are unavailable for Game 2, rookie forward Ryan Donato and forward Brian Gionta could enter the lineup.
Kadri has been suspended three times during the regular season for a total of 11 games.
NHL.com staff writer Mike Zeisberger and correspondent Matt Kalman contributed to this report.