Greece defender Vangelis Moras is continuing his trials at Swansea City.
Swans boss Brendan Rodgers will make a decision on the former Bologna centre-half later this week.
"We are in a unique situation with just one fully fit centre-half," Rodgers said. "It's quite incredible. We had a small squad anyway so it's very difficult, but we accept it.
"Moras has only been in a few days but I like his personality. There are a number of things we have to look at."