Kilmarnock manager Alex Dyer has vowed not to allow a person’s racist abuse to kick him out of his job.
Police are investigating after Dyer received a letter on Monday containing racist abuse.
Dyer said: “What happened to me is not about Kilmarnock because the people of Kilmarnock have been very good to me.
“This is someone who has a grievance against my color, it’s that simple. It has nothing to do with Kilmarnock or running a football club.
“I don’t mind someone telling me they want me to quit the football club because I am not doing a good job. I can accept that and keep going.
“But he’s someone who has the front to write a letter because of the color of my skin.
“I can fight because I’m in a privileged position, but there are people who don’t have anyone, so it’s up to me to keep talking about it.
“It’s important that we keep doing the right thing – we take the knee, keep spreading the message and hope that one day there won’t be any more.”
The former Charlton midfielder added: “I work hard every day, I give my all, because it’s the job I love to do.
“I will never let someone like that deter me from doing my job. Never never.
“It’s in the hands of the police and they will continue now.
“The football club has been great to me and I have had a lot of support from a lot of people. A lot of letters and emails have come out wishing me the best of luck.”