The incident came with less than three minutes remaining in Anaheim's 5-1 victory over Arizona. Ducks star Ryan Garbutt hit Coyotes defenseman Oliver Ekman-Larsson after Ekman-Larsson had cleared the puck, and Domi then charged at Garbutt to retaliate.
"When they go after our best player," Domi said after the game, per the Coyotes, "that's just how hockey works."
Domi was in violation of Rule 46.22, per the NHL rulebook:
A player who is determined to be the instigator of an altercation in the final five minutes of regulation time or at anytime in overtime shall be suspended for one game, pending a review of the incident.
When the one-game suspension is imposed, the coach shall be fined $10,000, a fine that will double for each subsequent incident.
The 21-year-old Winnipeg native will miss Saturday's game against the Florida Panthers. Domi's first year with the Coyotes has been successful. He has tallied 43 points, which is the second-highest mark on the team, and his 17 goals are the third-most for an Arizona team that's 10 points out of the final wild-card spot in the Western Conference playoffs.
He also notched his first career hat-trick on Jan. 12 against the Edmonton Oilers.
Domi has appeared in every game for the Coyotes this year, and he's already shown he's willing to stick up for his teammates—even if it means fighting one of hockey's top stars—in the short amount of time he's been in the pros.