Sporting Lisbon attacker Simon Vukcevic is a target for Bolton Wanderers.
"We know Sporting's coach, Paulo Bento, does not want to sell but I have told the club there is big interest from clubs in England," said the player's agent Zoran Stojadinovic.
Sporting value the 22-year-old midfielder at around £10m - a fee unlikely to detract Bolton, who still have plenty of funds available following January's sale of Nicolas Anelka.