Ecuadorian striker Enner Valencia has taken his medical at West Ham United, Guardian reports.
Valencia had an impressive World Cup, scoring three goals and is set to become boss Sam Allardyce’s fifth summer signing.
The Hammers have beaten off interest from several Premier League rivals, winning the race for the Pachuca star’s signature.
The fee for the transfer is likely to be undisclosed, but Pachuca chairman Jesus Martinez was adamant that his star player will leave for nothing less than the Mexican league record.
Martinez said: “There are various offers for Enner Valencia, the strongest and closest to what the player and us are demanding is from a club from England.
“We are seeking the possibility that is convenient for him and the club and that he is sold for the price that we like. We want to keep a percentage of the player in case he is sold in the future to another big team in Europe.
“It hurts me, I don’t want to sell him and neither does the manager or the fans but we can’t go against the career the kid aspires to.”
Last summer the Hammers purchased Andy Carroll for a club record £15million and it is expected the fee for Valencia is close to this region.