Serbian played for the Blues in 2009-10 campaign.
Chelsea have been told by Portuguese giants Benfica that they will need to pay a whopping £38 million in order to bring former player Nemanja Matic back to Stamford Bridge this summer, says the Daily Star.
The skilful Serbia international played for the west London club for one season under previous head coach Carlo Ancelotti in 2009-10, although the midfield player featured in just the three matches in all competitions in that campaign, including only twice in the Premier League as he was loaned out to Eredivisie outfit Vitesse Arnhem.
And the 24-year-old was then sold to Benfica in Jan 2011 as part of the deal that brought Brazil international David Luiz to Stamford Bridge in return for £21 million, with Matic going on to star in the Portuguese capital in the intervening two-and-a-half years.
During that time, the attacking midfield player has featured in 63 matches in all competitions for Benfica, scoring six goals, and it is understood that new Chelsea boss Jose Mourinho has asked owner Roman Abramovich to negotiate a deal to re-sign the player this summer.
However, it is very doubtful that the Blues will be willing to meet Benfica’s asking price.