Speaking to the official site, the Peruvian insisted he is focused on securing a victory for the Hammers despite being a crowd favourite on Tyneside for a number of years.
"I have a lot of friends at
"We have to be professional, getting a win on Saturday is all we are thinking about. It is nothing personal, although I had a great relationship with the fans and had a great time there, but the only thing I will be thinking about is helping us win the game. I am proud to be a West Ham player."