The Hammers had already lined up a prestige friendly against Lazio's city rivals and Serie A runners-up Roma at Upton Park on August 4, a week before the new season begins.

The club's pre-season campaign begins against Dagenham and Redbridge this Saturday in a testimonial for goalkeeper Tony Roberts.

West Ham then face Sigma Olomouc on Tuesday and Lazio on July 22 before a series of pre-season games through July against Leyton Orient, MK Dons, Southend and Norwich.