Kadri has been offered a hearing from the league's Department of Player Safety following a cross-check he delivered to the face of Bruins winger Jake DeBrusk in the final minutes of Saturday's Game 2 in Boston.
The Bruins returned to their familiar physical style of play after dropping a 4-1 decision to Toronto in Game 1 of the series on Thursday.
Game 3 takes place in Toronto on Monday night at 7 p.m. ET.
Kadri did not speak with the media following Saturday's game, a 4-1 Bruins victory to even the series at 1-1.
Bruins head coach Bruce Cassidy didn't think the knee-on-knee hit was questionable.
"We've made our adjustments, we've looked - you've got lots of time, you've got one team - you go through it both individually for players and collectively as a group and see what you can improve on".
The Leafs now have to regroup for Monday's Game 3 at Scotiabank Arena, likely minus one of their most influential players, especially at this time of year. He declined to speak about the Kadri cross-check. When asked about the infraction, Maple Leafs head coach Mike Babcock said he didn't see it and has not yet reviewed it. The Maple Leafs went on to lose that series in seven games. Most notably, their storied past includes the invention of "The Avery Rule" after the temperamental winger purposely obstructed the netminder's view in lieu of trying to make an actual play. This would be the fifth time in his career that he's been suspended for an illegal check and the eighth time he's faced discipline from the league - he's been fined three times.More news: On AFSPA, PM Modi says, 'Shouldn't our security forces have safety net?'
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This means Kadri is eligible to be suspended in excess of five games.
Speaking of ice, Marner was also asked about a video from the NHL's "Stanley Cup Confidential" series posted to Twitter that showed him mixing ice cream and chocolate sauce into a soupy mess as part of his pre-game preparations. If you try to hit him, it seems like he can slide checks, create plays.
This time around, the Leafs have Auston Matthews and John Tavares down the middle ahead of Kadri. "If he's still standing up, there isn't anything wrong on that, but he fell".
Boston hit everything in sight, jumping out to 3-0 lead in the second period before Kadri scored midway through the third, about four minutes before his cross-check on DeBrusk. No penalty was called on that either, and though Kadri clutched a knee before going to the room, he was back for the third period.
Before five minutes had elapsed, the Bruins scored off a tenacious forecheck when David Backes, a healthy scratch for Game 1, centred to Charlie Coyle, who beat Frederik Andersen at 4:44.
"They had a push and we weren't really ready for it", Leafs defenceman Jake Muzzin said after the game in the visitors locker-room at TD Garden.
"As a kid I just always stirred it up like that and always thought it tastes better", said the 21-year-old. Pastrnak promptly fed a no-look-behind-the-back pass to Marchand, who slid a shot between Andersen's pads. Obviously Kadri stayed down.