The Brazilian winger, who joined the Blues recently from Palmeiras after turning 18, has made an immediate impact in England. Having once scored against Chelsea in the FIFA Club World Cup, he has quickly won over supporters with his energy and flair.
Estevao made his Premier League debut from the bench in the opening-day draw against Crystal Palace. Just a week later, he was thrust into the starting line-up against West Ham after Cole Palmer picked up an injury in the warm-up. The youngster seized his chance, becoming the youngest Chelsea player ever to register a Premier League assist as the Blues swept to a 5-1 win.
He kept his place for the following match, a 2-0 victory over Fulham, showing maturity beyond his years.
International recognition has followed. Last Friday, Estevao scored his first goal for Brazil in a 3-0 World Cup qualifying win over Chile at the Maracana, further underlining his rapid rise.
"It's happening very quickly, and I'm already getting a lot of opportunities at Chelsea, more than I expected," Estevao told Globo Esporte.
"Enzo Maresca has a lot of confidence in me, and I try to repay that on the pitch by giving my all. The adaptation has been incredible."
The teenager credited the warmer summer weather in London and the support of the coaching staff and fans for helping him settle. "Since I arrived, I've felt at home. The affection I see from the fans and the staff is incredible.
"I'm loving Chelsea, I'm loving London. I don't think it could be better," he said.
Maresca, who has promoted several academy graduates into the senior squad this season, has said that Estevao's work ethic in training has impressed the coaching staff.
With Palmer sidelined, the Brazilian is expected to keep his starting place when Chelsea face Brentford on Saturday, giving him another chance to prove why many see him as one of football's brightest young talents.