Japhet Tanganga has signed a new contract at Tottenham Hotspur until 2025.
The Spurs defender's previous deal expired at the end of next season, but has now agreed a new five-year deal.
Tanganga has been impressed since being handed his first team debut by Mauricio Pochettino in September, and quickly established himself as a key member of Jose Mourinho's first team squad.
The 21-year-old, who is comfortable playing in a variety of roles across the back four, follows Oliver Skipp and Eric Dier in putting pen-to-paper on new long-term deals at the Tottenham Hotspur Stadium.
In a statement on their website, Spurs said: "We are delighted to announce that Japhet Tanganga has signed a new contract with the Club which will run until 2025.
"The young defender has impressed playing across the back line this year in what has been his breakthrough season, having made his senior competitive debut in our EFL Cup tie against Colchester United in September, 2019, before coming into the team for his first Premier League appearance at home to Liverpool in January.
"Three days after his league debut, he was named Man of the Match in our FA Cup win against Middlesbrough."
Tanganga has not featured for Tottenham since the season restarted after recovering from a stress fracture in his back, but was on the bench for the 1-1 draw with Crystal Palace on Sunday.
