From The Indie:
The dislike for today's opponents remains ("I'm delighted they went out against Porto") though Doyle's slightly guilty secret - the worst of his self-confessed extra-marital affairs - is that he once almost jumped into bed with the enemy.
At the time he had briefly fallen out with Allison (whom he greatly respected) after being dropped for Rodney Marsh (whom he didn't). Taking a phone call from a Mr O'Farrell, the name of his estate agent, Doyle barked: "Have you got rid of this bloody house yet?" only to be told in lilting Cork tones that he was speaking to the manager of Manchester United. "Frank O'Farrell offered me a three-year contract, which was almost unheard of at the time and about twice as much money as I was on at City. So I went into Maine Road in collar and tie expecting to move, and Malcolm told me I wasn't going. I thought the United board had turned it down because of all the things I'd said about them, but it turned out it was City's board wouldn't let me go there."
It was probably just as well.