After Robin van Persie completed his £24million move from Arsenal to Manchester United on Friday, football fans up and down the country, not least in north London, are still coming to terms with the striker's decision to swap Premier League allegiances with a direct title rival.
The 29-year-old Dutchman revealed he had "listened to the little boy inside him", when making his choice, and said that once he knew United and Sir Alex Ferguson were interested, he didn't have to think twice about the prospect of playing at Old Trafford.
Of course, it's not the first time that a high-profile deal has taken everyone in the world of football by surprise - but where exactly does Van Persie's shock switch rank in the list of top five transfer controversies? GiveMeFootball investigates. . .
Luis Figo – Barcelona to Real Madrid (£44million)
Undoubtedly recognised as the most controversial move in Spanish football history, Figo committed the cardinal sin of leaving Barcelona for Real Madrid in the summer of 2000.
Los Blancos paid £44million for the Portuguese star, who had a pigs head thrown at him on return to the Nou Camp, with fans of the Catalan giants feeling betrayed by one of their former idols.
Sol Campbell – Tottenham Hotspur to Arsenal (Free Transfer)
If Figo to Madrid was big in Spain, the decision of Campbell to join the Gunners from Spurs at the end of his contract was hugely controversial in north London.
The move proved a success when it comes to silverware, with two Premier League and three FA Cup winners' medals in the cabinet. However, his nickname at White Hart Lane remains 'Judas'
Carlos Tevez – Manchester United to Manchester City (Free Transfer)
The Argentine international had already completed a controversial move to West Ham United before switching to Old Trafford, where he enjoyed a successful two seasons.
However, when his contract expired, a new deal could not be agreed, and the 28-year-old moved across Manchester to big-spending City. Despite a recent spat with manager Roberto Mancini, the move seems to have paid dividends with another title to his name.
Fernando Torres – Liverpool to Chelsea (£50million)
Out-of-form and out-of-favour at Liverpool, the Spanish striker handed in a transfer request at Anfield amidst rumours that Roman Abramovich was willing to splash some cash on the former Atletico Madrid star.
Few would have guessed that £50million would change hands for the 28-year-old though, and his lack of form after completing the move suggests it wasn’t money well spent. Time will tell under Roberto Di Matteo.
So, there you have it. Five of the most controversial transfers in football history - four of which occurred in the Premier League! Where would you rank Van Persie's move in comparison to the others? And, what about any we missed. Leave a comment below. . .