Paul Dickov has admitted he would like to bring Bongani Khumalo back to Doncaster Rovers - but any potential move could be blocked by red tape.
Khumalo, a free agent following his release from Tottenham Hotspur, is said to be struggling to obtain a visa to continue playing in England after missing a large chunk of last season through injury.
The South African defender suffered a serious knee injury playing for his national team in March 2014, while on loan at Doncaster, which kept him sidelined for a year.
Khumalo ended last season by making ten appearances for Colchester United, helping them to stay in League One.
Dickov told BBC Radio Sheffield: “I’ve been in contact with his representatives and the problem that Bongs has got at the minute is his working visa in this country.
“Through the unlucky injury that he had and the amount of time he was out, he has not played the amount of games for the national team that is required and the amount of games in this country that is required.
“That makes it a problem for him getting his visa and it’s looking unlikely at the minute that it is something that could be sorted out. I know his representatives here and in South Africa are trying to sort it out.
“Bongs was fantastic for us, on and off the pitch, as a player and a person,” added Dickov.
“He would definitely be one that we’d be interested in.
“I made the call to his agent at the end of the season just to find out what he was thinking because he finished it really strongly at Colchester.
“We were told then the main problem would be the visa and that’s an ongoing thing at the minute, and it’s still a problem for him.
“That’s not just disappointing for me but for Bongs too because he wants to stay in England.”
Meanwhile, Khumalo’s agent Glyn Binkin has insisted his client will stay in Europe and will not return to the Premier Soccer League in South Africa, despite rumoured interest from SuperSport United.
“He is remaining in Europe. We have several options, but at the moment I can’t reveal the names of the teams,” Binkin said.