West Ham United have confirmed the signing of Mexico international Pablo Barrera for £4million.
Sky Sources revealed on Friday that the Hammers were closing on the capture of the 23-year-old from UNAM Pumas.
After passing a medical and being accepted for a work permit, Barrera has agreed a four-year contract with a one-year option.
He told the club's official website: "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. 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."
He continued: "I am very excited about the opportunity and the possibilities of playing for West Ham. I will do my best. The fans can expect that I will give 100 per cent to succeed for the team and to play better than I have ever played before.
"I am very fast and can use both feet. I like the one-on-one situations and to take on my opponent and beat my rivals. I like to excite the supporters. People have said that I am the sort of player that the fans want to have the ball as often as possible because I can make things happen."
The Hammers also revealed that they hope to "announce two further signings within the next few hours."