Slaven Bilic confirmed that he expects Simone Zaza to be confirmed as a West Ham player on Friday.
Zaza has agreed personal terms and is in London for a medical ahead of an initial loan with a view to a permanent move, a deal that reports suggest is worth £24m.
West Ham looked short of firepower on Thursday night as they crashed out of the Europa League after a 1-0 defeat to Astra Giurgiu.
The Hammers boss is desperate for cover up front, with strikers Diafra Sakho, Andy Carroll and Andre Ayew all currently sidelined with injury and he believes the club have added a top quality option in the Italian international.