Genoa have dismissed an offer from West Ham for winger Diego Perotti, report Italian website Tuttomercatoweb.
It is claimed the Hammers submitted an offer of €8 million, equivalent of £5.8m, for the Argentine.
Perotti featured strongly for Serie A surprise package Genoa last season, who finished sixth in the division, above both Milan sides.
He scored four goals and provided six assists, and has two caps for his country.
The 26-year-old has dual Spanish nationality and would not have been subject to a work permit. He has a contract at Genoa until 2018.
The report states West Ham's offer was rejected by Genoa president Enrico Presiozi personally.
West Ham are looking to add new players after confirming the appointment of Slaven Bilic as manager last week. They have already looked to Serie A successfully, signing midfielder Pedro Obiang from Sampdoria.
Perotti has only been at Genoa for one season, signing from Spanish side Sevilla last summer for just £300,000.