Valencia wings in to Old Trafford
The 23-year-old Valencia, who has played 34 times for his country, joined United as a replacement for Cristiano Ronaldo who has agreed to move to Real Madrid for a world record transfer fee.
Valencia became United manager Alex Ferguson's first signing since the end of last season, reportedly costing around 17 million pounds.
"Antonio is a player we have admired for some time now. I am sure his pace and ability will make a significant contribution to the team," Ferguson said.
The Ecuadorian notched up 89 appearances, scoring seven times, after joining Wigan from Spanish club Villarreal in 2006.
UNITED FANS! Check FourFourTwo.com’s ever-expanding interviews archive for more stuff to read:
Web Exclusives Wayne Rooney, Peter Schmeichel, Carlos Tevez
Q&A Wayne Rooney, Cristiano Ronaldo, Ruud Van Nistlerooy
One on One David Beckham, George Best
Ask A Silly Question Bryan Robson
Boy's A Bit Special Danny Simpson
Perfect XI Garth Crooks, Bryan Robson, Sir Bobby Charlton, Eric Cantona
What Happened Next? David May, Norman Whiteside
Sing When You’re Winning Dominic Monaghan, Ian Brown
And Another Thing Being a Big Four fan
Plus! Rate United players (and others) on Talentspotter