Tottenham manager Andre Villas-Boas is a fan of Shakhtar Donetsk midfielder Douglas Costa but Spurs are yet to make an official offer, according to his agent.
The former Brazil Under-20 international has been attracting interest from across Europe this summer, with Serie A clubs Napoli and Roma thought to be keen.
The 21-year-old's agent, Cesar Bottega, claims Villas-Boas is an admirer of the former Gremio man but the North Londoners have not made any concrete approach.
He told calciomercato.it: "Villas-Boas appreciates Douglas Costa's qualities, although we have not received any official offer."
Fulham are another club being linked with the Brazilian but Bottega feels he may be out of the Cottagers' price range.
The agent added: "The club is not a great possibility economically, given we know the player's evaluation is around €18million (£14.3m)."
Bottega claims Roma were close to signing Costa but the deal did not materialise, while talks have also been held with Napoli.
He said: "We have spoken several times with Napoli and we were close to Roma, who made an offer, but the deal didn't go through."
Bottega is also the agent of highly-rated Internacional striker Leandro Damiao, who was the subject of an unsuccessful bid from Tottenham, according to the club's president.
The Brazil international's representative believes he could still make a move to the Premier League despite his reported €25million (£19.9m) price tag, with big-spending champions Manchester City having also been linked.
"He has been linked to several Premier League clubs, but it is difficult for him to leave Internacional because he is worth at least €25m," said Bottega.
"However, in England there are several teams that could pay that kind of money."