10 Most Controversial Transfers Of The Premier League Era
3. John Obi Mikel To Chelsea

When Mikel finally turned up, he insisted he had been pressured into signing a deal with United when his preference was to join the Blues and, in 2006, Chelsea reached an agreement between Oslo and United that would see the Londoners pay the Red Devils £12 million and the Norwegian outfit £4 million for Mikels services.
Mikel remains at Chelsea to this day, and has made over 200 appearances for the London side, winning four FA Cups, the Premier League and the Champions League.