The Cameroon striker was the sole beneficiary of his charge down of Timo Hildebrand.
Eto'o said: "I never plan it, because you don't know how a game is going to go but it's the second time I've picked the pocket of a keeper and that counts. It's good.
"Credit has to go to the manager, because he didn't stop shouting at me from the line, to put the keeper under pressure.
"I didn't think to go but, because he shouted so much, I started to get closer and in a moment I could get to the ball so I accelerated."
Eto'o has three Champions League winners medals - one more than Mourinho, with whom he won the tournament while at Inter Milan in 2010 - and believes he is now approaching his best as a Blue.
"I'm the same player I've always been," the 32-year-old added.
"There are things that happen in football, you always have to think in a positive manner and, yesterday, I was happy and I'm happy today - I'm always the same. Always happy."
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