Stoke City have agreed a fee to sign Houston Dynamo defender Geoff Cameron.
The MLS, who set transfer fees in the USA, have told the Potters that the 27-year-old will cost $2.5m (£1.6m).
However, the Premier League side could now face a problem with getting international clearance for Cameron due to his lack of international football for the national team.
"The deal is a work in progress as we speak," Stoke chairman Peter Coates told the Stoke Sentinel.
"We are still talking on personal terms and we need to make sure we get international clearance for him, but we are hopeful we will get that clearance on the basis of his history, his background and his achievements to date.
"We can see no reason why we won't get that clearance, but obviously we are taking nothing for granted."
Cameron, who was named in the 2011 MLS All Star team, has made five appearances for the USA following his debut in 2010.
