Chelsea paid £30m to sign Leicester City’s versatile midfielder Kiernan Dewsbury-Hall, 25, on a six-year deal.
He came through the Foxes academy and played 129 times for the club, scoring 17 goals – with 12 of them in last season’s Championship promotion campaign.
He also set up 12 league goals last season and was named the club’s player of the year.
New Chelsea boss Enzo Maresca knows him well from his time at Leicester last season.
“I spoke to Enzo Maresca about adding more goals to my game and thought of methods to do it and I have managed to do that,” said Dewsbury-Hall.
“It was nice to get into double figures. That is something I will try to do again this year because I am an attacking player trying to make a difference in the final third of the pitch.”
Leicester did not want to lose him, but needed the money to meet the Premier League profit and sustainability rules (PSR).