Chelsea have signed midfielder Kiernan Dewsbury-Hall from Leicester City for £30m.
The Foxes academy graduate, 25, has signed a six-year contract until 2030.
His transfer was completed before Sunday's Premier League profit and sustainability rules (PSR) deadline so will help Leicester comply with the financial guidelines.
He will link up again with manager Enzo Maresca, who joined Chelsea this summer after winning the Championship title with Leicester last season.
Dewsbury-Hall scored 12 goals and provided a further 12 assists in 44 league games last campaign, leading to him being named Leicester's player of the season and players' player of the season.