Chelsea are ready to include midfielder Oscar in a new offer for Real Madrid midfielder Isco.
Boss Jose Mourinho has identified the 23-year-old as a possible target for the summer transfer window.
According to reports in England, Chelsea failed with a £20m bid for the player earlier this week but the club are working on a new offer that will include the Brazilian.
Isco joined Real Madrid for £21m in the summer of 2013. He played more than 100 games for the club, scoring 17 goals in all competitions.
