Besiktas coach Senol Gunes has moved to block a move for Manchester United goalkeeper Victor Valdes.
Valdes has been linked with a move to Besiktas, however Gunes says he's happy with his current keeper stocks.
"It's better that we go with a goalkeeper like Tolga Zengin, who can defend the goal.
"Valdés, perhaps, will cause problems when he is only a back up," said Gunes.
Fenerbahce and Galatasaray are also interested in Valdes.