Defeats to Scottish clubs are few and far between for a bona fide giant of world football, but when they happen, the United players are rarely allowed to forget about it.
Fletcher told The Herald: "I experienced losing to Celtic [in 2006] and I still don't hear the end of it.
"The Celtic lads all go on about the night [Shunsuke] Nakamura scored with the free-kick. And that's despite the fact we've beaten them since then. That's the only game they want to talk about. It's why, although it's great to play against Rangers or Celtic, it's better to win."