A huge loss. Joe Louis had more defences and was a more dominant champion but Ali is the best heavyweight of all time, his CV is unrivalled. He faced the best in the best ever era in HW boxing and beat them all, his few defeats were avenged apart from the later fights that never should have taken place against Holmes & Berbick.
Aye heard about this late last night. A true sporting great who stuck by his beliefs through thick and thin costing him his freedom and eventually his health; but his achievements will live on indefinitely.
Probably the most famous face on the planet. Undoubtedly one of the greatest ever boxers, a remarkable character although with many flaws. 74 isn't too bad an age for someone with parkinsons for so long.