Nemanja Vidic
Vidic has not agreed to move to Barcelona or Galatasaray.

Manchester United defender Nemanja Vidic has not agreed a pre contract agreement with either Barcelona or Galatasaray, according to his agent.

The Serbian international is out of contract this summer and despite claims from David Moyes earlier in the season that the club were keen to offer him a new deal, the defender's future is still uncertain.

The United skipper has been free to discuss terms with foreign clubs since January 1 and is likely to have no shortage of suitors.

Barcelona, who have been in the market for another centre half after failing to sign Thiago Silva during the summer, have been credited with keen interest by the Spanish press while Roberto Mancini's Galatasaray are also interested.

But the Manchester Evening News report that there has been no agreement between Vidic and any interested parties as of yet, suggesting Vidic's agent Silvano Martina "knows nothing" of any deal already in place.

But despite his agent's comments, it would seem the United skipper is likely to leave the club after eight years.

"At the moment, I would rule out an extension with Manchester United," Martina told Radio Crc last week.

"Vidic, given his contract situation, has several teams looking at him. Vidic is a very good player and will have no trouble finding a new club. For the time being we are remaining calm."

Both Vidic and Rio Ferdinand could leave the club this summer with Jonny Evans, Phil Jones and Chris Smalling waiting in the wings. United are also reportedly looking to add another centre half to their ranks to fill the void that could be left by their experienced duo, who were not long ago regarded as the finest defensive partnership in European football.

Injuries have taken their toll on both players however and as a result United have been linked with host of names, including Porto's Eliaquim Mangala, Benfica's Ezequiel Garay and Cagliari centre half Davide Astori.