When Jose Mourinho was unveiled as Real Madrid manager in 2010, it looked a match made in heaven.
Los Blancos had struggled in the Champions League ever since the decline of the Galaticos and the Special One was fresh from propelling an unlikely Inter Milan side to European glory.
Furthermore, there was the exciting prospect of Mourinho managing none other than Cristiano Ronaldo who was one season deep into his world-record move to the Bernabeu.
And while Ronaldo truly kicked on in Spain under Mourinho's management, the Portuguese's stay in the capital wasn't exactly plain sailing.
A successful second season was flanked by a debut campaign that saw a 5-0 bludgeoning by Barcelona and a final term marred by high-profile clashes with Iker Casillas and, Ronaldo.
By 2012-13, Mourinho was beginning to lose his grip on the dressing room with Barcelona romping their way to the La Liga title and Borussia Dortmund dumping them out of the Champions League.
As a result, it seemed a logical step for the 54-year-old to part company with Real in 2013 and return to Chelsea that same summer.
Tensions were very much alive, however, when the two sides locked horns in pre-season.
Marcelo gave Carlo Ancelotti's men the lead after just 14 minutes in Miami before Ramires levelled the scores at 1-1. From there on in it was a Ronaldo masterclass.
The Portuguese lined up a free-kick from 20 yards out, proceeding to beat Petr Cech with a typical knuckle ball strike helped on its way by the cross bar.
As soon as the net rippled, Ronaldo proceeded to face the Chelsea bench and remind Mourinho exactly who the boss was by nonchalantly pointing to his chest.
According to the Daily Mail, the celebration was especially tailored for his old manager who had reignited the feud before the match in naming Brazilian Ronaldo as the 'real' Ronaldo.
Check out the brilliant moment below, skip to 4:59:
Ronaldo wasn't speaking too soon either as a labouring Blues side - featuring the likes of Romelu Lukaku and Victor Moses - were exposed by the Ballon d'Or winner once again.
Completely dumbfounding Ashley Cole and Gary Cahill, the 32-year-old arrived in the box with a trademark header to kill the game at 3-1 and secure the International Champions' Cup.
The Real Madrid superstar would have the final laugh that season, too.
Ancelotti guided Los Blancos to La Decima, an achievement Mourinho had failed to deliver, while Chelsea stumbled their way to a mediocre third place finish.
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