The hit came at 18:22 of the second period in Colorado's 3-2 over the Coyotes on Thursday night. Torres lowered his shoulder and appeared to hit Hejda on the side of the head.
Hejda lay on the ice for about a minute before being helped to the locker room.
Torres was not penalized on the play, and infuriated Avalanche coach Joe Sacco screamed at the officials.
With time in regulation ticking down, Del Zotto and Kopecky were involved in a scuffle in front of the net. Del Zotto cross-checked Kopecky, who responded by sucker-punching Del Zotto with his head turned.
The maximum fine allowed per the rules of the Collective Bargaining Agreement is $2,500.
Information from ESPNNewYork.com's Katie Strang and The Associated Press was used in this report.