Chelsea have been told to back off Pep Guardiola or risk losing out on the former Barcelona coach, reports The Sun.

The 41-year-old stunned world football in April, when he announced he was quitting the Camp Nou at the end of the 2011/12 campaign, to take a year-long sabbatical away from the game.

However, Chelsea were on the phone less than a month later, with Roman Abramovich desperate to confirm the Spaniard as his new long-term manager at Stamford Bridge.

It was only after Guardiola rejected the Russian owner's overtures that Roberto Di Matteo was appointed as the Blues' full-time boss, after delivering the FA Cup and Champions League during his interim role following the sacking of Andre Villas-Boas.

A second approach was made and declined last month, before Abramovich had even made the decision to dump Di Matteo, and according to reports, the former Barca boss is now growing increasingly irritated by Chelsea's persistent approaches.

Guardiola's advisors have made it clear to the European champions that their client does not appreciate the mounting pressure they are putting on him to reveal his next club.

Chelsea are determined to eek out an indication from the man that won 14 trophies in four years at Barcelona, that he would be willing to come to London next year.

But, Guardiola is well aware that Paris Saint-Germain and both Manchester clubs are also interested in his services, and will not be forced into rushing his decision.

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