A former youth football scout has been arrested by police investigating allegations of historical abuse in the sport.
Tributes Pour In For Muhammad Ali
Tributes have flooded in from the sports world and beyond for Muhammad Ali.
Former heavyweight boxing champion Evander Holyfield told MSNBC: "I'm glad to have known Ali because when I was a kid, at eight years old, I was told I would be like Ali.
"To take it upon yourself and say; 'I'm the greatest', you put yourself in a position for people to take pot shots at you.
"This is what Ali did. It's amazing him becoming three-time heavyweight champion of the world. At that time people thought, 'Who could beat three?
"You have to be stronger to get up from a loss to go on and that's what Ali proved to be.''
Former England footballer Gary Lineker tweeted: "The greatest has fought his final round. Muhammad Ali was the most magnificent athlete who transcended his sport.''
Argentinian boxer Marcos Maidana, a two-weight former world champion, tweeted: "Muhammad Ali the all-time greatest has left us. Thanks for everything. Go with God.''
Musician Wyclef Jean wrote: "I am the greatest, I said that even before I knew I was. Rest in peace to the greatest @MuhammadAli #MuhammedAli we lost another legend.''
British boxer Amir Khan tweeted: "Our Prayers and thoughts are with @MuhammadAli and his family #AliBomaye.''
Former heavyweight champion Mike Tyson tweeted: "God came for his champion. So long great one. @MuhammadAli #TheGreatest #RIP.''
Ali's former promoter Don King told CNN: "He's always been right there, Johnny on the spot, anything he could do for the benefit of mankind.
"Let us celebrate his life. This is not a time to mourn.
"This is a time to try to emanate the job he was doing and the burden he leaves behind for us to carry on, to remember that the people are the most important.''
Boxing champion Floyd Mayweather Jr told Fox News: "There will never be another Muhammad Ali.
"The black community all around the world, black people all around the world, needed him. He was the voice for us. He's the voice for me to be where I'm at today.
"I just want to thank Muhammad Ali and his family for being such strong people. You will always be missed. My prayers go out to Ali and his family.''
George Foreman, Ali's friend and rival from the famous "Rumble in the Jungle'' fight, told the BBC: "We were like one guy - part of me is gone.''
"Muhammad Ali was one of the greatest human beings I have ever met. No doubt he was one of the best people to have lived in this day and age.
"To put his as a boxer is an injustice.''
He also spoke of Ali's love for the UK and the way he was treated in the country.
"He loved London. If he had been born and raised in London he never would have changed his name,'' he said.
Tributes also came from figures outside the world of boxing.
Ringo Starr, who met the boxer along with the other members of The Beatles in 1964, tweeted: "God bless Muhammad Ali peace and love to all his family.''
Prime Minister David Cameron tweeted: "Muhammad Ali was not just a champion in the ring - he was a champion of civil rights, and a role model for so many people.''
Police are investigating whether purple pills found in Fife are connected to a case in which a teenage boy fell ill.
A Royal Navy helicopter pilot has paid a flying visit to his former aircraft to see its transformation into an unusual holiday home near Stirling.
A search team trawling a landfill site in the investigation into missing RAF gunner Corrie McKeague has been through more than 845 tonnes of waste.
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