Sunderland were last week said to be interested in signing Franco di Santo, as reported The Mail.
The director of his current club Werder Bremen, Thomas Eichin, has in response claimed they intend to keep him.
The Black Cats were said to be weighing up an offer of £8 million for the Argentine.
Eichin is quoted by Tuttomercatoweb, stating: "I do not know of any offer, Di Santo is a player of Werder and we want enter into a long-term renewal with him."
Di Santo was once a youth team player at Chelsea, and became a regular at Wigan Athletic in the Premier League.
It is in Germany where he has found his best form, scoring 14 goals in 24 appearances for the Bundesliga side this season.
He has just one year left on his contract after this summer, and he will have a big decision to make on his future.
Di Santo may see now as the best time to cash in on his current form and look for a new challenge, or alternately he could elect to stay at the club here he is having such success.
The 26-year-old scored just 13 goals in 97 games for Wigan. Sunderland's hopes of signing him would surely depend on them keeping their Premier League status.