Manchester United midfielder Ander Herrera has been named in a match-fixing probe as part of 41 players, who have been named by coaches and directors in Spain.
Prosecutors have alleged that almost one million Euros was used to pay Spanish club Levante players to lose their match against Zaragoza at the end of the 2010-11 season.
Prosecutor Alejandro Luzon also named Swansea City winger Jefferson Montero among those names, The BBC reported.
A Swansea spokesman said that they have had no contact regarding this matter.
Prosecutor Luzon filed the case at a court in Valencia on Monday. The court document reportedly alleges that Herrera was one of 10 people who withdrew tens of thousands of Euros funded by Zaragoza in order to pay bribes.
Montero, who joined Swansea from Mexican club Monarcas Morelia in July, was in the Levante side that lost 2-1 to Zaragoza on 21 May 2011.
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It is alleged that Levante's players were paid to lose the match, which Zaragoza needed to win to avoid relegation. Montero's alleged involvement is not described in the prosecution case.
Also named in the document are the current Atletico Madrid captain Gabi and Zaragoza's former coach, Javier Aguirre, now manager of the Japanese national side, the report added.