The club is making waves in the transfer market this week. The arrival of Kalidou Koulibaly on a four year deal marked their second big signing of the week.
It was on Wednesday morning, U.S time that Raheem Sterling was officially announced as a Chelsea player
Deal is expected to worth around 32 million pounds.
Koulibaly has flown to Las Vegas to join Chelsea on their pre-season tour of America and said "it's his dream to play in the premier League".