Chelsea are reportedly lining up a big-money move for Atletico Madrid midfielder Koke this summer.
The 23-year-old is also believed to have attracted interest from Barcelona, despite the club being banned from signing players until January 2016.
The Spaniard is said to have a £44m buyout clause in his contract, and according to The Metro, Chelsea are preparing to activate it when the transfer window reopens at the end of the season.
Koke, who has been linked to Premier League giants Manchester United in the past, is third behind Lionel Messi and Cristiano Ronaldo for the most assists in La Liga (9) this season.