Manchester United are reportedly keeping tabs on Chelsea midfielder Cesc Fabregas.
The Spain international has just 18 months left on his current contract and United are considering a shock move.
Jose Mourinho was the man who brought Cesc Fabregas to Chelsea in 2014 and is now in charge at United.
The Times claim United are sniffing around Fabregas and Chelsea have been prompted to react.
The Blues will now offer Fabregas a contract extension, but the club and the player disagree about the length of the new deal.
Fabregas wants to sign on for a further two years, but Chelsea are believed to prefer a one-year extension.
Antonio Conte is desperate to hang on to Fabregas and does not want to lose the playmaker to a direct rival.
United have been keeping tabs on Fabregas ever since Mourinho became manager 18 months ago.
Mourinho has ear marked Fabregas as an alternative to Mesut Ozil should he miss out on the Arsenal midfielder next summer.
Fabregas has sought assurances from Conte that he remains an integral part of the team after playing a pivotal role in the second half of last season.
The 30-year-old watched from the bench for much of the first half of last season, before playing a huge part in Chelsea lifting the Premier League title. And Conte has assured Fabregas he is still a big part of his plans at the club.