Fabinho spent only one season at Real Madrid, where he played 30 games for Real Madrid Castilla on loan from Rio Ave and only one with the seniors under Jose Mourinho.
The Liverpool midfielder recalled his time at Los Blancos and revealed an anecdote story on how he met the Portuguese coach, who is currently in charge of Roma.
"We arrived in Portugal, but I stayed around at Rio Ave for just two weeks, maybe three at the most," Fabinho told FourFourTwo.
"I had a barbecue with other Brazilians and then my agent called to say that Real Madrid Castilla needed a right-back and wanted to know if I was interested.
"Then one night, [Deco's brother] Lucio [Araujo] came and told me to pack my things because [the agent] Jorge Mendes was on his way by car in the early hours of the morning.
"I was like, 'Is something wrong?' Nobody said a word, but then at some point in the car, Mendes said we were travelling to Madrid and that I would sign for them.
"I called my mum in Brazil to tell her about that and she started to cry.
"No-one had expected something this huge to happen in such a short time. It was a very special moment for me."
Fabinho went on to recall the day he met Mourinho at a hotel in the Spanish capital.
"We headed to the hotel in Madrid, and while I was still sleeping, I woke up to somebody knocking on the door," he added.
"I looked through the peephole and couldn't believe it. It was Mendes and Jose Mourinho.
"I was still wearing my pyjamas, not at all prepared to meet him. I didn't even know what to say.
"He wanted to welcome me. I was still a bit shy and never thought I would meet him like that."