UNAM Pumas have confirmed that they have agreed a deal with West Ham United for Pablo Barrera.
Barrera's future has been the subject of speculation in recent weeks following a string of impressive performances for his country at the World Cup.
Employed as an impact substitute in South Africa, Barrera caught the eye with his lightning pace and helped Mexico reach the last 16.
His displays reportedly attracted the attention of several European clubs including Espanyol, Celtic and West Ham's Premier League rivals Everton.
But it is the Hammers who have won the chase for the 23-year-old's signature, snapping him up for an undisclosed fee believed to be in the region of £4million.
The president of Pumas, Victor Mahbub, announced the transfer was now completed and Barrera would travel to England this weekend.
"We have just finished the negotiations for transferring Pablo Barrera to West Ham. We and the player are satisfied with the arrangement that we have done with West Ham," Mahbub told Mediotiempo.
"Barrera will be signing a four-year contract, then in two or three years be transferred to another team.
"We got to a satisfactory agreement for both parts and I want to make clear that there wasn't any agent involved in the negotiations, everything was done from one club to the other and for respecting both teams we have arranged the transfer."
Barrera himself stated he was looking forward to his move and said: "I have been informed during the afternoon on Friday that my transfer to West Ham has been arranged.
"Now I am starting to get very anxious about travelling to England so I can join my new team, know my team-mates, the stadium, the city, everything."