Former Sydney FC marquee man and Manchester United ambassador Dwight Yorke has been denied entry into the United State because of an Iranian stamp in his passport.

Yorke, who had worked the previous day for BeIN Sports as a pundit on United's Europa League win over French club St Etienne, confirmed the story to Sky Sports after colleague Richard Keys tweeted the news.

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The Iranian stamp in Yorke's passport related to him playing in a charity match in Tehran, in 2015.

That charity match in Tehran featured Yorke on a World Stars team that also included Luis Figo, Roberto Carlos, Fabio Cannavaro, Marcel Desailly and Edgar Davids.

US President Donald Trump had issued an executive order banning travellers from seven Muslim-majority countries, including Iran, from entering the US for 90 days.

The ban has since been suspended in a series of court rulings for constitutional reasons but Yorke still claims to have been prevented from entering the country.

AAP