Manchester United manager Sir Alex Ferguson has questioned Rio Ferdinand's form amid reports that the defender could be dropped by club and country.
The England centre-back has come under scrutiny after a series of blunders over the past month, which have led to suggestions that he could be past his best.
Rio Ferdinand has backed team-mate Antonio Valencia to have a big impact at Manchester United over the coming season.
The winger was signed from Wigan in the summer for £16million as Sir Alex Ferguson looked to fill the void left by Cristiano Ronaldo.
Following a subdued start to life at Old Trafford the Ecuador international has started to find his feet with the Premier League champions.
Rio Ferdinand has told Zoo he can't stand losing!
"I hate losing," he said. "When I lose a game, my parents can't get hold of me for days - I won't speak to them. They text me and say they know I'm upset but just want to say hello. And I won't have it - I'm a bad loser. Ask the groundsman or anyone.
Everton youngster Jack Rodwell swapped shirts with Rio Ferdinand last season and hopes to eventually emulate the Manchester United centre-back.
Rodwell played in a defensive midfield role for England Under-21s against Germany on Monday but has been tipped to drop back into defence, just as Ferdinand did at West Ham at the start of his career.
Manchester United defender Rio Ferdinand will be fit for the Champions League Final meeting with Barcelona, according to manager Sir Alex Ferguson.
The England centre-half was absent from the crucial Premier League victories over Manchester City and Wigan this week and Ferguson was resigned to being without him for the possible title-clincher against Arsenal on Saturday.
Now you can send an email to Rio Ferdinand, thanks to a brand new website that delivers all electronic messages to the footballers within days!
Contact The Players.com allows fans to send personal messages - and some footballers will even REPLY!
Rio Ferdinand insists his England team-mates have not considered what they would do if they were subjected to the same racist abuse on Wednesday that they encountered on their last visit to Spain four years ago. Shaun Wright-Phillips and Ashley Cole, both members of the present England squad, bore the brunt of the abuse last time around.
Ryan Giggs and his Manchester United team-mates may still believe they can win teh quadruple!
United are still in it to win it in the FA Cup and Champions league, whilst they top the Premier League adn are in the final of the Carling Cup!