Dejan Stefanovic has joined Fulham from Portsmouth on a two-year deal for £1million, subject to a work permit.
The Serb moves after four years at Pompey following a move from Vitesse Arnhem in July 2003.
Fulham manager Lawrie Sanchez said: 'Dejan is a formidable defender with vast experience at both domestic and international levels.
'He reads the game well, is brave and knows the pace and strength of the Premiership, so I have no doubt that he will prove to be an asset for us over the coming months.
'It's been a busy transfer period for us and we have bought some real quality into the squad. It's been a disappointing start for us in terms of the results, but I'm confident that we have a squad of players now that can go on and achieve things here.'