"He's a young player with a lot of talent, who will no doubt win silverware at Atletico," he stated about the former Benfica starlet.
"He still has so much to give and will show his ability in Madrid over the coming months, [as well as being able to] contribute a lot to the Portuguese national team."
Carvalho also spoke of Flamengo coach Jorge Jesus, who he worked with during his time at Sporting CP.
"He has an unusual way of showing his passion for the game," he said about his former coach.
"They weren't used to seeing a coach with that kind of energy and adrenaline [in Brazil at Flamengo].
"It really makes me laugh. I was his player, so it's nothing new for me.
"The gaffer is a great coach and he's now at a great club."