Fenerbahçe have not received a £15 million offer from Sunderland for Moussa Sow a source close to the Süper Lig club told Turkish-football.com.
The Yellow Canaries are yet to receive an official bid for the Senegalese international from the Black Cats.
Sunderland have been closely linked with the 29-year-old striker this summer.
The Mirror reported that the Premier League outfit are preparing a £15 million bid for Fenerbahçe striker Sow after the Daily Star revealed that a previous offer for the Senegalese international had been rejected.
The Express report that Sunderland could face competition from the Hammers who are preparing a £12 million bid for the 29-year-old striker.
West Ham are targeting an additional striker following injury to Ener Valencia and Hammers boss Slaven Bilic is familiar with Sow having managed in Turkey for the past two seasons.
Sow still has another year left on his current contract which is worth €1.4 million this season.