Can someone tell me if a black guy could be signed up on a football trial when is in the UK to study?

I am an international student in the UK and i am talented Africa player, i just came to the UK few months ago and i am here studying. I registered for a football trial, I would like to know if there would be any chance of me getting signed? in respective of my skills and talent, because i am an international and would need work permit, would they grant me a work permit if eventually i was signed. i have not earned any Cap