Amir Khan's plans to travel to America this weekend have been halted after his visa application was declined.
The 27-year-old was due to fly to Las Vegas to attend Floyd Mayweather's fight with Marcos Maidana on Saturday, and had used his Twitter account to advertise promotional duties he would be carrying out while there.
His bid to do so was thwarted, though, with the welterweight saying his visa application had been declined.
It was reported that Khan had asked Prime Minister David Cameron for assistance.
Khan has had difficulties travelling to America before. In 2010 he had to train in Canada after visa delays, while in 2011 he claimed he was held in Los Angeles customs for over two hours because he is a Muslim.
The Bolton fighter is eager to be present at Mayweather's rematch with Maidana, as he attempts to persuade the world's number-one pound-for-pounder boxer to give him a 2015 fight.
Claims former world champion boxer Amir Khan assaulted two youths in his hometown of Bolton last week have been dropped, Greater Manchester Police have said.
The 27-year-old two-time world champion and Olympic silver medallist was arrested in the early hours of Friday morning over two allegations of common assault.
He had been released on bail pending further enquiries but today police confirmed no further action will be taken after the allegations were withdrawn.
A spokesman for Mr Khan described the incident as "a misunderstanding between Amir Khan and two other youths".
He added: "On Monday July 7, Amir was notified by the police that the allegations against him had been withdrawn and the matter would not be pursued any further."
On Friday, police arrested the former two-time champion and light welterweight and questioned him for several hours
He was released on bail the same day.
Boxer Amir Khan has tweeted that he is home with his family adding that "nobody got beat up". He was arrested over an alleged assault allegation.
Amir Khan is "expecting the case to be dropped" after he was arrested in connection with an assault, a spokesperson for the boxer said.
"It was a minor incident and we're expecting the case to be dropped against Amir," they said. "We're expecting to formally hear that from police on Monday morning."
The 27 year old was alleged to have been involved in an dispute with two 19-year-old men who both suffered minor injuries.
Police have confirmed that a 27-year-old man, believed to the boxer Amir Khan, was arrested in Bolton in the early hours of this morning following reports of an assault:
The boxer Amir Khan has been arrested in connection with an alleged street assault in his hometown Bolton, the Manchester Evening News has reported.
The 27-year-old was reportedly involved in an dispute with two 19-year-old men who both suffered minor injuries in the alleged incident.
The paper cited Khan's representatives, Tangerine PR, as saying that the boxer had been arrested on suspicion of common assault and released on bail pending further enquiries.
British boxer Amir Khan beat his American opponent Luis Collazo on points in Las Vegas and has now set his sights on a future bout with the unbeaten Floyd Mayweather.
The judges scored the fight 117-106, 119-104 and 119-104 in the Bolton boxer's favour leaving open the possibility of a future fight with Mayweather - who also won last night at the MGM Grand.
Khan, who is unlikely to fight the unbeaten boxer in September because it is close to the Muslim fasting period of Ramadan, said after his fight: "I really believe I have the style to trouble Floyd Mayweather."
British boxer Amir Khan has tweeted his support for former world heavyweight champion David Haye after the 33-year-old underwent re-constructive surgery on his shoulder.
Haye has been told to "seriously consider" ending his 11-year boxing career after the surgery.
Boxer Amir Khan has revealed he wanted to marry before he lost his looks as he swapped the boxing ring for a wedding ring.
The 26-year-old tied the knot with US student Faryal Makhdoom in a lengthy ceremony at the Waldorf Astoria in New York at the weekend.
And in an interview with Hello! magazine - which has also published the official photographs - he said he is a "changed man".
The Bolton-born champion married the 21-year-old political science student in a week-long, elaborate Islamic ceremony.
He joked: "I had to get in there and tie the knot quickly, before I got beaten up in too many fights and lose my looks."
Khan, who beat rival Julio Diaz in the ring just weeks ago, went on: "I've lived the young life, I've done everything I've wanted to do. Now is the right time to settle down and start my own family.
"I've got to look after Faryal, so I won't be going out as much partying with my friends. I don't want that any more - I want to do the family thing."
The boxer - pictured with his new bride wearing elaborately stitched red and gold robes - told the magazine: "I think I'll change as a person when I'm married and it'll be a big plus for me, I'll be able to be more focused on my job too."
The new Mrs Khan also spoke of her joy, and about her forthcoming move to Bolton in the feature, spread across 16 pages.
"I'm so happy to be with the man I love and to spend the rest of my life with him - it's a new chapter in my life," she said.
The full interview appears in the new edition of Hello! magazine, which is out now.
British boxer Amir Khan has kept his hopes of punching his way to another world title fight alive on a night which saw Olympian Anthony Ogogo began his pro career with a win.
Headline-act Khan was knocked to the canvas in the fourth round in Sheffield but stayed strong against Mexico's Julio Diaz to claim a hard-fought points victory at the Motorpoint Arena.
Earlier Ogogo, a bronze medallist at London 2012, defeated veteran Kieron Gray with a knockout in the second round on his professional debut.