There is no timetable for a decision from Commissioner Bettman.
The Colorado Avalanche center was disciplined for an illegal check to the head of St. Louis Blues defenseman Justin Faulk in Game 2 of the Stanley Cup First Round at Ball Arena in Denver on May 19.
Kadri served the first two games of the suspension in Game 3 and Game 4; the Avalanche swept the Blues in the best-of-7 series.
Faulk, who did not return in Game 2, did not play in the final two games of the series.
Colorado defeated the Vegas Golden Knights 7-1 in Game 1 of the second round Sunday.
"The eight games, I'm a little surprised to be honest with you," Colorado coach Jared Bednar said when the suspension was announced. "I looked through all the headshot suspensions for the last year. A lot of two-gamers get handed out that were significant hits to the head. We've had some guys put out with hits to the head that you know are still out with no suspension and two games.
"So I thought, generally the rule of thumb, in playoffs, you get a little less, and he got significantly more, so it is what it is. We have to deal with it and we need other guys to step up and I'm not going to worry about it past today. We have to live with the decisions [NHL Player Safety] make and they make them for a reason. We don't always have to agree when it's their decision and you've got to live with it. "
The incident occurred with 13:34 remaining in the third period. Kadri was given a match penalty at 6:30.
If the term of the suspension is not fully served during the 2021 Stanley Cup Playoffs, the remaining games will be served at the beginning of the 2021-22 regular season.
This is the third time Kadri has been suspended in the postseason. When playing for the Toronto Maple Leafs, he was suspended three games for boarding Boston Bruins forward Tommy Wingels in Game 1 of the 2018 Eastern Conference First Round. He also was suspended for the remainder of the 2019 first round for cross-checking Boston forward Jake DeBrusk in Game 2; the Bruins on the series in seven games.
Avalanche forward Carl Soderberg replaced Kadri for the final two games of the series and had one assist averaging 9:30 in ice time. He had not played since May 10.
Soderberg scored 17 points (seven goals, 10 assists) in 45 regular-season games, including two assists in 11 games with Colorado after being acquired in a trade with the Chicago Blackhawks on April 12.
"[Kadri] put himself in a bad spot on the hit and now he has to sit for a while," Bednar said. "We've got other guys [who can] step up in order to win hockey games'"
NHL.com staff writer Mike G. Morreale contributed to this report
