Tributes have flooded in from the sports world and beyond for Muhammad Ali, who has died at the age of 74.
-- Jerome Boateng (@JB17Official) June 4, 2016
The three-time world heavyweight champion, who had battled Parkinson's disease for 32 years, was admitted to hospital with a respiratory condition earlier in the week.
A legacy greater than any, the legacy of Muhammad Ali.
-- Lethal (@LegitPsycho_) June 4, 2016
RIP Muhammad Ali...May Allah grant u the highest rank in jannah??
-- ???? (@xxheena786xx) June 4, 2016
His family's spokesman Bob Gunnell confirmed Ali's death in Phoenix, Arizona, on Friday evening local time and said that the Ali family "would like to thank everyone for their thoughts, prayers and support" and asked for privacy.
In his day, Muhammad Ali was also called a loud mouth, conceited, arrogant, and he polarized people. But for the right reasons.
-- Hend Amry (@LibyaLiberty) June 4, 2016
People have been remembering the man hailed as "The Greatest" with touching tributes on social media, with many quoting some of his infamous inspirational phrases.
-- Horace Panter (@horacepanterart) June 4, 2016
"Float like a butterfly, sting like a bee" RIP Muhammad Ali, a true legend who will be gone but never forgotten ??? pic.twitter.com/LqnWZcYBQo
-- Jordan (@jordsteel) June 4, 2016
-- ???? ??????? (@KhalidAlAmeri) June 4, 2016
Athletes from the world of sport have also been posting their thoughts and memories of the boxing legend online.
-- Mike Tyson (@MikeTyson) June 4, 2016
-- Amir Khan (@amirkingkhan) June 3, 2016
-- Frank Bruno MBE (@frankbrunoboxer) June 4, 2016
-- Oscar De La Hoya (@OscarDeLaHoya) June 4, 2016
Mohammad Ali was the first athlete I was truly inspired by. He was a true champion and forever a legend. RIP Muhammad Ali.
-- Alex Morgan (@alexmorgan13) June 4, 2016
Muhammad Ali represents and symbolises greatness for all the world over. His name and story will live on forever. RIP!
-- Cathy Freeman (@CathyFreeman) June 4, 2016
With around two million tweets and numerous top trends on Twitter, it just goes to show what Ali really meant to the world.