In a statement on his Facebook page, the United star said he had nothing to do with manipulating match results.
In an on-going legal process involving Real Zaragoza (Spain), the club I was honoured to play from 12 until 22 years of age, there are 41 people mentioned, of which I am one.
"I have never had and will never have anything to do with manipulating match results.
"If I am ever called to testify in any judicial hearing, I’ll be happy to attend, as my conscience is totally clear.
"I love football and I believe in fair play, both on and off the pitch."
A Spanish judge has named Manchester United midfielder Ander Herrera amongst 42 people in an alleged match-fixing case.
The Basque midfielder was part of the Real Zaragoza team that played in a 2-1 win over Levante at the end of the 2010-11 season that is under investigation.
Herrera was listed along with every other player that represented their club, along with the Zaragoza manager and president.
It has previously been reported in court that the Levante team were offered £766,000 to lose the match.
A judge will now decide whether any prosecutions are required.
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Thousands of runners have taken part in the eighth annual Santa dash in aid of the Manchester United Foundation and other charities.
The event was kicked of by club legend Bryan Robson.
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Manchester United's spending on employee benefits for the quarter ending September 30th fell by £3.5m, or 6.6 per cent, to £49.4m, "primarily to lower player wages", said the club in a statement.
United executive vice-chairman Ed Woodward confirmed the fall in revenue was mainly due to the absence from Europe.
He said: "While we recognise that the 2014/15 fiscal year financial results will reflect our absence from the Champions League, we signed the largest kit sponsorship deal in the history of sport in the first quarter and, with that concluded, we are excited to focus our efforts on the meaningful growth opportunities in sponsorship, digital media and retail and merchandising."
The overall drop in wages is due to a combination of United not having to pay out bonuses for playing in the Champions League, as well as an exodus of highly-paid players from the wage bill including Nemanja Vidic, Rio Ferdinand, Patrice Evra, Ryan Giggs, Danny Welbeck, Bebe, Javier Hernandez, Tom Cleverley and Shinji Kagawa.
Even though new manager Louis van Gaal has made a number of high-profile signings, including Angel di Maria and Radamel Falcao, he has still kept the wage bill lower than the squad under predecessor David Moyes.
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Manchester United appear to have been dealt another injury blow after Daley Blind suffered suspected torn knee ligaments while playing for Holland on Sunday night.
He hobbled out of the game in Amsterdam against Latvia, which Holland would go on to win 6-0, after 20 minutes following a fall in a challenge with Eduards Visnakovs.
Blind later said on his Instagram account: "I'm proud of my 25 games for the Dutch national team, but I'm so gutted with my injury... I'll stay positive en will come back stronger! Nevertheless a great win, 6-0!"
National coach Guus Hiddink suggested Blind could be facing up to six weeks of rehabilitation.
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Former Manchester United player Ravel Morrison has been cleared of threatening to have his ex-girlfriend "murdered for £10,000" .
The Wythenshawe-born Premier League star, 21, was accused of assaulting Rhea Mansoor and her mother Parveen Mansoor in July.
Mr Morrison was also accused of harassing Reah Mansoor by threatening to "throw acid in her face and to pay £10,000 to have her murdered" between January 1, 2010 and July 20 this year.
But, at a brief Manchester Crown Court hearing today, prosecutor Guy Mathieson revealed the charge of putting Rhea Mansoor in fear of violence by harassment was not being pursued, and a verdict of not guilty was formally recorded on the direction of Judge David Stockdale QC.
Mr Morrison, who was dressed in a black shirt and trousers, is still due to go on trial on January 26, facing charges of actual bodily harm and assault by beating against Rhea Mansoor, and assault by beating against her mother.
Mr Morrison was arrested in the early hours of July 27 following reports that Rhea Mansoor, 19, had been assaulted outside a nightclub in Manchester city centre and at an address in Peel Green, Salford.
Her 39-year-old mother also claimed she had been attacked.
The midfielder has been capped at international level. He moved to West Ham from United in 2012.
He remains on the books of the east London club but is currently on loan to Championship side Cardiff City.
Judge Stockdale bailed Mr Morrison to an address in Cardiff on condition he does not contact directly or indirectly the two alleged victims.
He must not enter Greater Manchester except for court appearances or an official football match, and must return immediately after each match.