Brighton boss Graham Potter is delighted with Lewis Dunk's new contract.
The defender has penned terms to 2025.
Potter said, “We're absolutely delighted that Lewis has made this long-term commitment to the club. It's fantastic news for everyone: the club, the supporters, the team and myself.
“Since I came to the club he's been a joy to work with and he's a top player. We are very lucky to have him.
“I think his role as captain is one he's grown into and one he will do better and better for the next few years.
“He leads by example on the pitch and he's a good lad off it – a delight to work with.
“We're all determined to push on next season and establish the club in the Premier League and I'm really pleased that Lewis will be with us on that journey."