Steven Defour is to tell Porto he wants to leave, with Anderlecht favourites to claim the midfielder's signature.
Defour's agent Paul Stefani has told the Belgian media that the 25-year-old is anxious to move and secure regular first-team football - given he has started just six games so far this season.
Aston Villa are known to be keen, and Stefani says they may yet launch a bid - but he predicts a move to Anderlecht is more likely.
"He will tell Porto he wants to leave the club. Porto don't want to sell him and consider him as a player for the future, but with the upcoming World Cup, Steven has to play more games," Stefani is quoted by La Deniere Heure.
"There's a chance he may join Anderlecht. Their general manager, Herman Van Holsbeeck, has always said he would like to sign Steven. Even when he was a player of Standard Liege."
While Anderlecht are favourites, Stefani admits they would consider a Premier League deal.
"To say Anderlecht is not Steven's first choice is wrong. We get a lot of phone calls from agents who promise they can bring Steven to the Premier League," he said.
"For example, an agent telling us Tottenham is interested. So, it's logical we'll wait a little longer to make a decision when we hear Tottenham. But I haven't heard anything of them yet.
"Aston Villa's interest may become imminent, but the interest of Anderlecht is the most concrete since the beginning. They have always said they really want Steven."