Selleck was suspended for leaving the bench on a legal line change and then starting a fight with Carolina Hurricanes forward Kevin Westgarth. In the video explaining the suspension, it's clearly shown that Selleck left the bench with the sole intention of engaging Westgarth in a fight.
Brendan Shanahan noted in the video that Selleck made no attempt to locate where the puck was on the ice, instead opting to locate a rival player. This action violated league rule 70.2, which opens players who leave the bench to start a fight to discipline.
Selleck was already guaranteed a one-game suspension for starting a fight in the final five minutes of a game. However, the Department of Player Safety also decided to add an additional game for leaving the bench to start a fight.
The game was Selleck's first in the NHL. He will forfeit $5,945.94 in salary, which will be donated to the Players' Emergency Assistance Fund.