BORUSSIA Dortmund defender Neven Subotic has held talks with Middlesbrough over a move to Teesside.

The Serbian defender, wanted by Sunderland, has been at the Riverside for a look round after Dortmund gave him permission to speak with the Premier League new-boys.

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Subotic is understood to have been shown around the Riverside Stadium and held advanced discussions over the switch, although there is still thought to be some work to do on the deal.

The 27-year-old will cost Middlesbrough around £8m if the transfer does go through, although his German employers are happy for the deal to take place.

Dortmund tweeted this morning “Subotic was released from training, to lead negotiations with a potential new club.”

Middlesbrough have confirmed that former Barcelona goalkeeper Victor Valdes has joined the club on a two year deal.