Swansea City have taken Ostersunds FK centre-back Sotiris Papagiannopoulos on trial.
Swedish sources say he was due to take part in a training game yesterday.
The 26-year-old Greek-Swiss defender is understood to have flown to Cardiff on Wednesday.
The club have a working relationship with Ostersunds, having signed forward Modou Barrow from them in 2014.
Swansea have signed two central defenders this summer - Alfie Mawson from Barnsley and Mike van der Hoorn from Ajax - while former captain Ashley Williams has joined Everton.