By Italy correspondent Gianluigi Carrozzini

Juventus have rejected a fresh approach from Chelsea to sign Paul Pogba, Football Insider sources understand.

The Premier League champions have made another move for the £60million-rated midfielder after registering their interest in him earlier this year.

Chelsea contacted Juventus about Pogba over the last week but were informed by the Serie A club that he is not for sale this summer.

Juventus, who have sold Carlos Tevez, Andrea Pirlo and Arturo Vidal in a major makeover of their first-team squad during the transfer window, regard Pogba as essential to their defence of their Serie A crown and ability to reach the later stages of the Champions League.

The 22-year-old former Manchester United midfielder is one of the most coveted young players in the world and is being closely watched by Barcelona, Real Madrid, Bayern Munich and Manchester City.

The Chelsea Paul Pogba approach demonstrates the extent at which Roman Abramovich is willing to back Mourinho in the transfer market.

The London club completed the signings of Pedro and Baba Rahman over the last week following the team’s worst start to the season in 17 years.

Pedro joined for £21.2million from Barcelona and Rahman transferred from Augsburg in a £17million deal.

The pursuit of Pogba represents a significant statement of intent from billionaire owner Abramovich. Pogba is a long-time target of the Premier League club but it is doomed to end in failure until January at least.