"He was an important person at the beginning of my professional career," Ferreira told chelseafc.com.
"He was the one that taught me all the tactical things as a right-back because it was when he went to Setubal that I returned from the national team having played right-back for the first time.
"I played a game away in Holland as a right-back because the usual right-back for the national team had got a second yellow card in the game before, and he had to miss the game. The national manager talked to me and asked me if I could help by playing in that position.
"I was happy to help," he continues. "To play for the national team was something really important for me. We ended up getting a good result - we drew 1-1 - and when I got back from the national team was when we changed manager at Setubal.
"So in my first session with Jorge Jesus, he just started me as a right-back. He had watched that game and he liked me there, so I was a right-back."