Boxing journalist Steve Bunce has told ITV News that "people have fallen in love" with Floyd Mayweather and he believes that the American will be backed to the hilt when he takes on Mexico's Saul Alvarez in Las Vegas on Saturday night.
The WBA light middleweight title fight is being billed as the richest in history.
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Officials from the train drivers' union Aslef will meet managers from Southern Railway, whilst the RMT will meet separately with Acas.
Last week the organisation wrote on Twitter: "If Obama grants Manning clemency Assange will agree to US extradition".
The Foreign Office have changed their advice for UK travellers following political unrest in the west African country.