West Ham have signed Mexico winger Pablo Barrera in a £4million deal with Pumas.
The 23-year-old has signed a four-year contract at Upton Park after passing a medical and receiving his work permit yesterday.
West Ham now say they hope to add two further signings "within the next few hours".
Barrera made three appearances at the World Cup, all as a substitute, as Mexico made it to the last 16.
He is West Ham's second signing of the summer following the arrival of German midfielder Thomas Hitzlsperger.
"I am very happy to sign for West Ham United and have been really taken by the reception I have received from the players and the manager," Barrera told the club's website.
"I have had a great welcome.
"I knew about West Ham when I was in Mexico. They are a big club and I have heard about the great players they have had in the past. I have heard a lot more about the club and its traditions since I have been in London and I am very excited to be here."
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