Derby County defender Lewin Nyatanga is carrying an injury suffered on Wales international duty.
The youngster is currently on-loan with Barnsley and is a major doubt for the clash with Scunthorpe at Oakwell on Saturday.
"Lewin will fly back from Trnava this evening and we will have to assess him," Barnsley boss Simon Davey told the club's official website.
"He has to be a doubt for the Scunthorpe United game but we will know more soon."