In this scenario, I would think some form of sanction might apply to the club as well as the player. If there is a ruckus on the pitch, the club gets fined for failing to control their players. I'd imagine it'll be financial rather than any sporting punishment like a points deduction.
I find chesterfield an abhorrent club. With the furlough, jumping the queue for vaccine, the James Rowe saga and now this and the lack of any well wishing for the injured party, they just seem a scummy club