Inter Milan coach Jose Mourinho took a swipe at Real Madrid after victory over CSKA Moscow last night.
Mourinho's Inter will now face Barcelona in the Champions League semifinals after Wesley Sneijder's early winner in Moscow.
Even now, Mourinho still can't believe Real allowed the Dutch midfielder to leave.
He said: "I do not understand why the Spanish have let him go, but inside clubs there is an internal logic that outside you cannot understand.
"Now he has become essential for us."
On Mario Balotelli's cameo, Mourinho added: "I was pleased. He did what he was told."