Ali died Friday at a Phoenix-area hospital he had spent the past few days being treated for respiratory complications
Credit: Harry Benson/Express/Hulton Archive/Getty

Boxing’s “greatest of all time” is being remembered by celebrity fans and friends. He died early Friday at age 74.

Hollywood A-listers and athletes expressed their condolences on social media with many of them posting well-known photos of the sports hero.

Quincy Jones said in a statement obtained by PEOPLE: “RIP to the greatest of all time, our brother and friend Muhammad Ali. A man of character, faith, dignity, humanity and professionalism in your craft, you embodied the best of us as human beings. The world will miss your presence, but we’ll celebrate your spirit forever.”

“He was gracious, kind and fun and made others important – a great example for all of us,” said John Travolta in a statement to PEOPLE.

“RIP @muhammadali, a legend who transcended sport and was a true champion for all. #thegreatest #MuhammadAli,” tweeted retired boxer Oscar De La Hoya.

“God came for his champion. So long great one. @MuhammadAli #TheGreatest #RIP,” said Mike Tyson.

“Goodbye champ. Fly like a butterfly….” Josh Gad wrote on Instagram.

“Muhammad Ali is dead at 74! A truly great champion and a wonderful guy. He will be missed by all!” Donald Trump tweeted.

“Yes you did Mr Ali. You shook up the world Sending love and light to the family #RIP,” Kate Hudson captioned a video of some highlights from Ali’s career.

One day before Ali’s death, boxer Manny Pacquiao tweeted: “Please keep @MuhammadAli in your thoughts and prayers. With God, all things are possible.”