Manchester United icon Sir Alex Ferguson says games against Manchester City and Liverpool still gets him nervous.
United famously overtook Liverpool's number of league titles with Fergie in charge.
He told the Daily Mail: “Strangely enough, I don't get over-excited about it. I enjoy watching because they're a great club to watch.
“There's always something exciting about that club, there's always something going to happen. No matter whether they lose or win, there's always something really exciting about it.
“The only time I get a bit anxious is when we play Liverpool and Man City because those are the biggest games.
“The things about English football is the tribalism. You've got the London clubs, the Midlands clubs and the Yorkshire clubs. That creates a real competitive edge to matches.
“But nothing compares to the Liverpool game.
“Of course, Manchester City now have risen to a very prominent position in the game and those games have become very important too."