Dahlin, taken first overall in the 2018 draft by Buffalo, drove into the left circle before making a backhanded pass during a Sabres power play late in the second period Monday. As Dahlin curled back, Cernak caught him with an elbow that knocked him to the ice.
Dahlin was left bloodied and departed with a concussion. Cernak wasn’t penalized during the game for the hit.
Tampa Bay won the game 5-2.
Cernak had a hearing Tuesday with the safety board, which later announced the suspension. The suspension will cost Cernak $7,500 in pay.
The Associated Press contributed to this report.