Chelsea signed France defender Maxence Lacroix from Crystal Palace in a deal worth a reported £52 million ($69 million) on Thursday.
Lacroix agreed a six-year contract with the Blues and will link up with his new club for their pre-season preparations.
The 26-year-old has won seven caps for France and played for his country at the recent World Cup.
“I am really happy to be part of this beautiful club. Everyone knows the legend of Chelsea, its tradition of winning, and to be a part of that is a proud moment,” Lacroix said.
“When I spoke with the manager, I saw that we have the same direction and desire for this club.
