the 1999 First Division play off final was played between Bolton Wanderers and Watford, Manchester City never played in it, they got promoted to the Premiership the season after through automatic promotion in 2000
It was the striker from Norway called Ole gunner Solzjer.
It was Marcus Babel in 1999, but Manchester United won by goals by Ole gunner Soaljhar, the super sub.
Michael Owen
Didier Drogba has scored one goal against Manchester United, in the 2007 FA Cup Final.
Eric Cantona
STEVE MACMANAMAN
The first goal scored in the 2009 Champions League final, which was the last time Barcelona and Manchester United met each other, was scored by Samuel Eto'o from Cameroon. Barcelona went on to win the match 2-0, with the second goal scored by Argentina's Lionel Messi.
Mario Balotelli (Manchester City)
Eric Cantona scored the brilliant goal for Manchester United in the FA cup Final 1996 against a hopeless Liverpool and helpless David James
Norman Whiteside Norman Whiteside
They are Dennis Irwin, and Roy Keane.
I can think of Mark Hughes, scored for Manchester United against Chelsea in 1994 before moving to them a season later. Frank Stapleton scored for Arsenal against Manchester United in the 1979 Final and moved to United in 1981. Kevin Keeganscored in 1974 for Liverpool against Newcastle United, and went on to play for them in 1982. That's all i can think of