Inter won the home game 3: 1  Pep Guardiola's team in Barcelona was arguably the most dominant football team in the world at the time, and when Pedro put them in the lead, saw the Nerazzurri already had a tough fight.
Mourinho's men resisted, however, and turned the tie on their head. Wesley Sneijder equalized before half-time, and goals from Maicon and Diego Milito in the second half gave Inter a commanding lead in the second leg.
Barcelona could not overcome the two-goal deficit thanks to the classic Mourinho-ispired rearguard to a piece of the iconic Mourinho celebration.
Barcelona 5-0 Real Madrid
Villa was hit twice during the humiliation.
After Mourinho had finished triple with Inter, he looked for a new challenge with the Spanish giants Real Madrid. His first El Clasico to be responsible for Los Blancos wasn't one he wanted to remember. Guardiola's team played Madrid in a tiki-taka master class absolutely outside the park.
Xavi and Pedro got the ball rolling with goals in the first half, then a David Villa brace and a Jeffren goal in stoppage time completed the humiliation. This was compounded by a late red card for Sergio Ramos.
Real Madrid 0-2 Barcelona
Messi's incredible solo goal got Barcelona on the pitch at the Bernabeu
2011 gave us an El Clasico semi-final in the Champions League and it didn't disappoint.
After roughly an ugly 75 minutes of arguments, cynicism and lots of cards, Lionel Messi rose to the top with a bracket. The first was a neat finish from Ibrahim Afellay's cross; The second was an extraordinary solo motor that dribbled past four players before the ball passed Iker Casillas.
It wasn't all bad news for Mourinho in his debut season at the Bernabeu. In fact, he had beaten Guardiola in the Copa del Rey final a week earlier.
Barcelona 1-2 Real Madrid
Ronaldo's winner effectively sealed the title for Real Madrid.
Mourinho's ultimate revenge on the Catalan giants came on April 21, 2012 when his team effectively won the league at Camp Nou.
Sami Khedira put the guests in the lead with a scratchy start in the 17th minute before Alexis Sanchez scored an equally scratchy equalizer.
Not surprising, however. Cristiano Ronaldo was the hero when he converted from Mesut Ozil's centimeter through pass.
The win put Real Madrid seven points ahead of the top of the league with only four games remaining, but that put an end to Barcelona's chances of fourth consecutive titles.
Manchester City 2-3 Manchester United
Paul Pogba was the catalyst for an incredible turnaround at Etihad.
Throughout their time in Manchester there was no doubt who was ahead. Guardiola won consecutive Premier League trophies with record points while Mourinho only lasted two and a half years before being sacked.
Nevertheless there was some joy for the Portuguese.
On April 7th 2018, Manchester City had the chance to seal the title against their bitter rivals. Vincent Kompany and Ilkay Gundogan's goals in the first half put the Cityzens on their way to a comfortable win.
The second half was completely different. A quick shot from Paul Pogba put the Red Devils back on par and Mourinho's men secured the three points with a winner from Chris Smalling.
On a grand scale, the result meant very little. Man City still won the league by an absolute landslide. However, it prevented what would have been one of the most humiliating days in Man Utd history.
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