Alan Brazil has slammed Celtic's Green Brigade over the explicit blast aimed at Rod Stewart .
He's told the Ultras group the musician "knows more about Celtic than you" in an impassioned on-air defence.
The Green Brigade unveiled a banner telling the famous Hoops fan to "f**k off" after he congratulated Boris Johnson on his General Election victory last month.
Displayed during the win over Hibs at Parkhead, the message read: "Tories not welcome, f**k off Rod".
But radio pundit and Celtic supporter Brazil has hit back and insists Stewart's love for the club cannot be questioned.
He was backed up by co-host and Rangers legend Ally McCoist, who branded the banner "terrible".
Speaking on talkSPORT , Brazil said: "I'm going to get pelters here but I'm going to say it - I was very disappointed to see the banners at Parkhead.
"I don't get that, I'm sorry, I really do not get it.
"It's all to do with Rod congratulating Boris - what's politics got to do with football, by the way?
"The guys who done that, you can say what you like about me, slag me off, do what you like.
"I've been over there - his gym, his snooker room, it's a museum to Celtic.
"I'm telling you now, who wrote that, who put those banners up - he knows more about Celtic than you do."
You can watch the full clip below.
