The Summer transfer officially opens at midnight Wednesday 1st July when Darren Randolph and Doneil Henry officially become West Ham players.
Both have been left out of the Europa league squad but Darren Randolph is hotly tipped to be a late addition to the Europa League 25 man A list under the UEFA 24 hour rule which allows one new addition to the squad.
The opening of the official transfer window brings fresh speculation that a deal for Alex Song could be concluded tomorrow.
The 27-year-old Barcelona midfielder has reportedly agreed personal terms with West Ham, but Barca have been holding out for a fee, believed to be as much as £5million. West Ham are hoping to persuade Barcelona to terminate his contract to make him a free agent.