The British outlet claims the Blues will make a massive offer for Madrid midfielder today.
Isco will be offered a £250,000-a-week salary for 4,5 years.
The playmaker is out of favour with Madrid coach Santiago Solari.
Chelsea are going to make a stunning £70m bid for Real Madrid midfielder Isco today, according to the British outlet The Sun. The media also claims that the salary of £250,000-a-week is about to be agreed.
As part of a deal, a sizeable signing-on fee will be proposed to Isco to convince him on a 4,5-year contract.
Los Blancos midfielder has fallen out of favour at Santiago Bernabeu this season. The relationship between the Madrid coach Santiago Solari and Isco has totally deteriorated, which makes Isco consider his future options, Mundo Deportivo claim.
Chelsea, as well as several other Premier League and Serie A sides, are reportedly interested in the Spaniard, with Manchester City, Arsenal, Tottenham, Juventus, Napoli and AC Milan reportedly in the race.
As per Mundo Deportivo, Manchester City and Juventus are among the favourites to sign the out-of-favour midfielder. Man City have the advantage as their interest is a long-term one with Pep Guardiola being a well-known admirer of Isco. The former Barca coach considers the Spanish international perfect fit for his system.
But it seems that Chelsea are determined to take the lead in the race with a massive bid.