Graham Potter has been named manager of Chelsea following the sacking of Thomas Tuchel.
Chelsea, upon hiring the Brighton manager, praised his “progressive football and innovative coaching”.
The 47-year-old led the Seagulls to a ninth-place finish last season and they are fourth in the table currently.
Potter’s first game as Chelsea boss against Fulham on Saturday will likely be postponed following the death of Queen Elizabeth II.
“I am incredibly proud and excited to represent Chelsea FC, this fantastic football club,” he said.
“I am very excited to partner with Chelsea’s new ownership group and look forward to meeting and working with the exciting group of players and to develop a team and culture that our amazing fans can be proud of.”
Chelsea chairman Todd Boehly, who axed Tuchel on Wednesday, just seven games into the new season, said he was “thrilled” to bring Potter to the club.
“He is a proven coach and an innovator in the Premier League who fits our vision for the club,” Boehly said.
“Not only is he extremely talented on the pitch, he has skills and capabilities that extend beyond the pitch which will make Chelsea a more successful club.”