Which would be perfectly fine if he was singing this about say... Stokes manager but this is a one off occasion where he let his fan side over rule his manager side after a few well deserved drinks.
I'll agree it's not very classy, it is a bit cringey but fuck me, it's hardly anything to get titties on about. Growing up I remember footy players being regularly in the news under accusation of getting pissed, starting fights and even sexual assault. Some big players have had 'gotcha' stories about possible dodgy dealings, cheating on their missus and god knows what else and people are concerned over a pissed manager singing a song about his rival club and lets not forget he was around other fans. It's hardly like he ran up to Danny in the tunnel singing it. Fuck me.