Serie A champions Juventus will launch a summer raid for Oscar - and that could open the way for Paul Pogba to move to Chelsea.
Juventus sporting director Fabio Paratici has flown to London to try to set up a £20million deal for the Brazilian midfielder.
They are long-term admirers of Oscar and actually missed out on signing him to Chelsea when they signed him for £19m in 2012.
Oscar, 23, has enjoyed success at Stamford Bridge, but this season he has not been an automatic pick and Jose Mourinho will look to shake up his squad this summer.
Juventus' Frenchman Pogba is the most sought-after midfielder in Europe with Chelsea, Manchester City, Real Madrid and Manchester United all in the hunt.
Juve are already warning that it would take a world record fee to sign 22-year-old Pogba, but Chelsea could see Oscar as potential leverage.
Chelsea are targeting Real Madrid's Raphael Varane this summer as they also look to strengthen their defence
Meanwhile, Diego Costa is hopeful of being fit to face Stoke on Saturday - even after pulling out of international duty with Spain.
Costa hobbled off with a hamstring injury at Hull last month and did not make the Spain squad. But he continued his rehab on Thursday and wants to play.
Spain will be keeping a close eye on developments
