Absolute rubbish mito. Asking for people's personal interests isn't discrimiation FFS
As Tobes said you'd have to prove that was the reason you didn't get the job which could be tricky, unless they wrote on the interview notes saying that...
but asking if "you are a fan of a direct commercial competitor" might be.. if it ends up you don't get offered the job

Any questions in that scenario should relate to football and not club affiliation or you leave the door open for trouble


