Chelsea have reportedly activated the £35million release clause in the contract of Crystal Palace winger Michael Olise.
The France under-21 international, 21, is expected to become the latest summer arrival at Stamford Bridge, The Athletic reported.
Mail Sport's Transfer Confidential column revealed on Monday that Chelsea had stepped up their pursuit of Olise.
He was formerly an academy player at Chelsea between 2009 and 2016.
Olise is currently recovering from a torn hamstring suffered while playing for France at the Under-21 European Championship earlier this summer, which will keep him sidelined until the end of September.