Preston boss Graham Westley labelled Notts County winger Jamal Campbell-Ryce's tackle on Scott Laird in the goalless draw at Deepdale as "disgusting" after it left the North End defender with a suspected broken leg and claimed his side are being victimised.
County substitute Campbell-Ryce saw red in the dying stages of a drab goalless draw after a tackle that led to Laird being taken away in an ambulance.
"I thought it was disgusting, it was obscene, no language is strong enough, Westley said. "There was absolutely no intent, in my opinion, other than to be totally reckless and put someone in serious danger."
He added: "He offered me an apology but the boy's laying in hospital, it's not my apology to accept.
"My players are telling me that referees are saying to them 'we know what you lot are like'. Who is telling them what we are like, who is prejudicing these officials?
"We need to talk to the referee's chief and understand. I've drawn attention to it before, these people are playing with people's lives."
Westley added: "I wouldn't want to say's it's a break because I wouldn't want to wish it on him, I'm not thinking good news but I'd love to get some."
While County boss Curle expressed his sympathies for Laird, he insisted there was no intent in Campbell-Ryce's challenge.
"There was a massive furore and obviously we hope the lad's OK but I don't think there was any intended malice," said Curle, after County had made it 19 away games unbeaten.
"He didn't go for it to be a career-ending tackle, if you have a look at it in slow motion, the lad's gone to cross the ball and kicked Jamal's leg."