Tomato ketchup has been kicked into touch for fans at Manchester City's derby with their red rivals - in favour of a specially-prepared blue sauce.
Blue sauce - for fans who can't stomach the red stuff
The club's head chef John Benson-Smith has prepared the speciality for the 3,500 corporate guests.
City meet Manchester United at Eastlands on Saturday.
Mr Benson-Smith said the recipe was a closely guarded secret. "It's all natural, but its got quite a kick to it," he said.
He added: "At the end of the day, to use a well worn football expression, our blue sauce is just a bit of fun.
"But our guests take their football as seriously as we take our food preparation and presentation and I am sure that the blue sauce will come out on top."