Robinho was so desperate to leave Real Madrid in 2008 that he gave little thought as to whether he should join Manchester City or Chelsea. This led to an amusing first official interview with City in which he thanked Chelsea for having signed him.
Alexis Sanchez's situation is slightly different, though, and a lot less understandable.
Yes, the Chilean wanted to leave Arsenal at all costs but he has had his heart set on a reunion with former Barcelona boss Pep Guardiola at City since last May.
In fact, only the Gunners' failure to persuade Monaco to sell them Thomas Lemar blocked his £60m transfer to the Etihad on the final day of the summer transfer window.
Another agreement was struck for the deal to belatedly go through this month but Alexis instead moved to City's rivals, United. It is a staggering u-turn, and not a flattering one.
He will be linking up with an inferior team and an inferior manager. Any argument to the contrary on either point is completely undermined by the current Premier League standings.
Alexis' stated reason for his unrest at Arsenal is the need to sate his desire, at 29, to be competing for major trophies. “When I got here, I thought, 'I'll win the title with this squad,'" he lamented last May.
Yet he has decided against joining the champions-elect, who have legitimate hopes of winning four trophies between now and the end of the season, in favour of one that could win half as many (and even then, the Champions League is a long shot for a United side that is so often handicapped by Mourinho's pragmatism).
With all of that in mind, it is difficult to conclude that Alexis has done anything but move for the money.
That is his prerogative, of course, but the least he could now do is spare us any talk of winning major titles when it comes to explaining his decision to move to Old Trafford over the Etihad - provided he even cares which club he's joined, of course!