Chelsea and another player have agreed to be added this summer.
The Blues have reached agreement for Midfielder Lesley Ugochukwu for £23.5 million from Rennes.
Within the next 24 hours, the 19-year-old is anticipated to have a medical exam.
He has also agreed to terms with the Blues personally.
According to The Athletic, Ugochukwu might be given a loan to Strasbourg for the 2023–24 campaign.
After making his debut for Rennes in 2021, the Frenchman played 47 times in Ligue 1.