Roma defender Antonio Rudiger is expected in London to undergo a Chelsea medical and sign for the Blues.
Express Sport has claimed that manager Antonio Conte wants to sign a number of players before pre-season kicks off.
So far, the Blues have added goalkeeper Willy Caballero to their squad.
On Monday, the 24-year-old defender said that all he wants to do is to enjoy the Confederations Cup win.
"It's not about the future now...it's now about enjoyment," he said.
"I need to enjoy this moment, and I'm enjoying it to the fullest. The rest we will see in the coming weeks."
