Sunderland defender Dennis Cirkin has signed a new three-year contract with the Championship club.
The 21-year-old moved to Wearside in August 2021 from Tottenham Hotspur.
"This is one of the best places to be for young players at the moment. I think this is the perfect place for me," said the left back.
Cirkin has made a total of 62 appearances for Sunderland and helped his team to a sixth-placed finish in the Championship last season, before they lost to Luton in the play-off semi-finals.
The England Under-20 international joins fellow defender Trai Hume in signing a new deal at the club.