Wigan Athletic boss Roberto Martinez has hailed the impact Antonio Valencia is making at Manchester United.
Martinez, the Wigan manager who rubber-stamped Valencia's £16million move to Old Trafford last summer, believes United aren't missing Cristiano Ronaldo so much because the Ecuadorian winger has brought a new dimension to the champions.
Martinez said: "You will never replace like for like in terms of Cristiano Ronaldo but what Antonio brings to the United side is as effective as what Ronaldo used to do for them.
"In Ronaldo you are talking about the most stylish player in world football. He is so pleasing on the eye and you can't replace that but Antonio is as effective as Ronaldo in a very different way. Look at the way he has contributed this season.
"Tactically he has really developed his game in the short time he has been at United - his knowledge is now on a different level and he has stepped up his game in a big way.
"From an early age he has looked after himself on the pitch. For instance he was playing for Villarreal and Ecuador from a young age. Once he is on the pitch he is very arrogant in the right way. He is a great professional, he is a real team player."