The supporters have a customer relationship with the employer in this case, and an employee clearly has a duty as part of the general duty not to damage the interests of the employer to further rather than damage that customer relationship so I think that’s the wrong argument. There is a direct enough causal link. What may be more questionable legally, despite the sound and fury on here, is whether there is any objective evidence of that much damage.It’s more likely to be incompetence than negligence. It’s unlikely an employee of the club would owe a legal duty to supporters