Manchester United (aka Manchester United: The Official Computer Game) is a football/soccer simulation created by Krisalis. It was originally developed for the Amiga and published in 1990. It was ported to Commodore 64, DOS, Amstrad CPC, ZX Spectrum, and Atari ST.
The game uses the official license of Manchester United and, as you can expect, you won't be able to choose other teams. Despite this, and despite the minimum match time being 10 minutes (how annoying), it's a game that received positive reviews. In terms of action, it doesn't beat Sensible Soccer or Kick Off, but the tactical part is well done. The Tacti Grid, a system that allows the player to micro-manage the football players, will make all coaches very happy.