Ruben Vinagre has signed a new five-year deal at Wolves, the Premier League club have announced.
The left wing-back has committed his future to the club until 2024 after impressing since his 2017 arrival, initially on loan, from Monaco.
He helped Wolves win the Sky Bet Championship in 2018 and finish seventh in the Premier League last term, which secured Europa League qualification.
Sporting director Kevin Thelwell told the club's official site: "Ruben has developed impressively since joining the club two seasons ago and is an important part of Nuno's squad.
"As the club has grown in recent times, Ruben has done the same, and performed commendably when called upon in the Premier League last season.
"Off the pitch, he provides a mature head for someone so young and is a popular personality inside the dressing room.
"We're excited to watch and help Ruben develop further this coming season and, after his impact in the two Asia Trophy games, we hope he'll kick on once again."
Vinagre made 21 appearances last term, adding to the 13 he made during the club's title-winning campaign in the second tier.
The 20-year-old has scored once for Wolves, who host Crusaders in the first leg of their Europa League second round qualifier on Thursday.