They negotiated with AEK Athens for over two weeks and agreed a transfer on 22 June .
After Costa , Benfica selected Kostas Katsouranis as their top target in the search for another central midfielder .
Benfica negotiated with AEK Athens for over two weeks and agreed a transfer on 22 June .
After Costa , Benfica selected Kostas Katsouranis as their top target in the search for another central midfielder .