Paul Pogba
Manchester United's Pogba challenges Stoke City's Wilson during their English Premier League match in Manchester.

Juventus have entered into crisis talks with Manchester United over Paul Pogba, according to Italian sources, with the youngster yet to agree a contract extension at Old Trafford.

Sir Alex Ferguson had said last week that he hoped Pogba would make a deal to stay at the club for the long term, with the manager telling reporters: "It's possible [he will sign]. There's been no progress on his contract talks."

But while United are still in talks with Pogba, speculation has mounted surrounding a possible deal for the midfielder to make the move to Juventus instead.

And reports that United have entered into talks with the Serie A side, and explained that they don't want to be undermined as they continue contract talks with the France Under 19 international.

According to the paper, David Gill has personally met with Juventus football executive Giuseppe Marotta to smooth over any ill feelings regarding Pogba, and United are now working hard to either get the midfielder signed or let him speak to other clubs, rather than having both take place simultaneously.

But Juventus have reportedly given United a warning over Pogba, telling the club that the starlet is being chased by a host of other sides apart from themselves, and if Ferguson hopes to shore up the teen's future he will need to move quickly.

Pogba has been touted by numerous reports as the next Patrick Vieira, and the Red Devils are said to have offered him £20,000 in wages to keep him at Old Trafford.

But problems with agents have led to stalling over contract talks, and Ferguson has regularly commented that the situation surrounding Pogba has been made more difficult by his representatives.

United had hoped that he would take advice from stalwart Rio Ferdinand, but with limited playing time and money being an issue for Pogba, contract talks are likely to continue.