In a Sky TV tribute to his glittering career, Giggs says: "Two or three of us, the best players in [my junior] team, went down to City, we used to go on a Thursday night at Platt Lane.
"I enjoyed it but I was a United fan! I remember turning up in a red top and was made to take it off!"
"I'd wanted to play for United from an early age," added the 34-year-old. "Obviously I was at City but City hadn't really approached me with a contract even though I'd trained there for two or three years.
"I think maybe they assumed that I'd sign for them, I don't know, but I'd enjoyed the week at United, it just felt like home. I had no hesitation in signing."