LONDON, July 1 (Xinhua) -- Manchester United have signed Ecuadorian winger Antonio Valencia from Wigan Athletic on a four-year contract, the Premier League champions said on Tuesday.

    The 23-year-old Valencia, who has 34 caps for his country, joins United days after winger Cristiano Ronaldo's world record transfer to Real Madrid was completed.

    "Playing in front of 76,000 fans alongside players like Wayne Rooney, Rio Ferdinand and Ryan Giggs will be an amazing experience. I can't wait to get started," Valencia said on United's website.