Wales boss Chris Coleman admits "there is an issue" over bringing Ryan Shawcross into the national squad, despite positive talks with captain Aaron Ramsey.
Coleman has openly admitted his interest in recruiting Stoke defender Shawcross to represent Wales.
The 24-year-old was born in Chester but is believed to qualify for Wales having spent five years of compulsory education in the principality.
Shawcross has always insisted he wants to represent England, but he has fallen out of contention over the last 18 months.
But Coleman's desire to gauge his interest in pulling on the red shirt is tempered by the history that exists between Shawcross and Ramsey.
The Arsenal midfielder broke his leg in six places after a challenge by Shawcross in February 2010, and Ramsey ignored the defender's initial attempts to apologise.
Coleman has spoken to Ramsey about the possibility of Shawcross playing for Wales, and he said: "I had a conversation with Aaron when I was in Cardiff and it was very positive, but there is an issue there.
"The point is to play football and be successful, you don't have to be best mates.
"I don't have to talk to you as long as it works on the pitch; you don't have to be best friends.
"The best dressing rooms I have been in have been edgy.
"That's what I tried to tell Aaron, he is a professional at the end of the day and he wants what is best for Wales. He wants to be captain of a winning Welsh side.
"I can make it as nice for the players as I can, they can come away and have a good time, but if they are not winning what's the point?
"What's the strongest team we can get on the pitch? That's what it is about."
Coleman will also consult Stoke manager Tony Pulis about approaching Shawcross, and intends to do so once Wednesday's friendly has been taken care of.
"We haven't decided anything, I still haven't spoken to Ryan or Tony yet but I will do," he said.
"If it's going to make us better then I will do it.
"I've got to be respectful of Tony. We've got Bosnia this week so it won't be before then, but I will after that."
Coleman also confirmed his intention to include Cardiff defender Ben Turner in his squad in the future.
Turner, who qualifies for Wales through his grandmother, is not in the squad for Wednesday's friendly against Bosnia-Herzegovina, but Coleman is an admirer of the player having worked with him at Coventry.
But Coleman says it will be a while before he can include Shawcross, even if the England Under-21 international does decide to play for Wales.
He said: "The way it works with Ryan is that because he has been with England Under-21s that if, and it is if, he decided he wanted to come with us and we wanted to take him it's not cut and dried.
"It's a long process that can take two months and it's about the committee that decides these things coming together, not just the Welsh FA.
"Ben Turner qualifies and I like Ben. I have not had a conversation with him yet, I left him to enjoy his summer but I like Ben.
"I had him at Coventry and he's come on leaps and bounds."