I was at that game, and am a qualified soccer referee. The way serious events are distinguished are contained in an acronym: CaRD - Careless events are fouls. Reckless events deserve a Yellow Card, and Dangerous action requires a Red Card. Anyone who was at the game and saw the collision knows it was Dangerous and should  have deserved  Fisher being sent off.  I am at a loss why the league hasn't taken supplementary disciplinary action. How about doing some journalistic digging, Globe?