Malang Sarr, a young French defender previously with Nice, has joined Chelsea
In a statement, Chelsea director Marina Granovskaia said: "The opportunity to sign Malang was one we could not miss. He is a tremendous prospect and we will be monitoring him closely during his loan period, hoping he will soon be back at Chelsea. We are very happy to welcome him to the club today."
Chelsea have been busy in the transfer window having already brought in Timo Werner, Hakim Ziyech, Ben Chilwell and Xavier Mbuyamba.