Vitesse Arnhem fullback Alexander Buttner's move to Southampton has stalled.

It appeared all parties had agreed a deal over the Swede.

But Vitesse have revealed an extra demand from Buttner's camp is holding up the transfer and everything now appears at deadlock.

"Vitesse is disappointed about the state of affairs, especially since at the express request of the player was we negotiate with Southampton," the Arnhem club declared in a statement.

"The club Southampton has behaved correctly and take no blame for undermining the transfer. Vitesse also has done everything for the transfer to go through."