Muhammad Ali's legacy lives on with photo revealing grandson's astonishing resemblance

Muhammad Ali is arguably the greatest boxer of all time and his genes carry on with his legacy, at least in looks as his grandson Curtis, son of Laila Ali has the internet raving about how much they look alike.

50 years: Ali vs. Norton 2

But the career of the man once known as Cassius Clay was so long ago, on September 9, the boxing world remembered it was the 50th anniversary of the second fight between Muhammad Ali and Ken Norton, the second fighter who sullied the record of 'The Greatest' in the first of their duels, in March 1973. The consequences of that fight are well known: Ali's loss of the North American Boxing Federation title and a broken jaw.

Ali's supremacy at heavyweight was questioned, even though he was only 31 years old. 'The Greatest' worked hard to prove that he was still a worthy opponent and on the day of the rematch - he looked much more sculpted and 5 kg lighter. The only problem was that the former Marine Norton was still the same 6'2' titan'.

The rematch finally came and from the third round onwards Ali opted not to sit on his stool to rest while Dundee gave him instructions, although there were times when he had no choice. He later began to move into a fighting stance 10 to 15 seconds before the round began in an attempt to dislodge Norton. By the end of the fifth round, the latter was yelling at him, "I've owned you."

Past the halfway point of the fight (they were already going 12 rounds), the 'Black Hercules' had come back and from the eighth round, the contest was even, although Norton landed the occasional punch that could award him the round.

The move to show off in the final round awarded 'The Greatest' the contest by a split decision. To this day, Floyd Mayweather still justifies that the greatest of all time is him "because Ali actually lost three times to Norton". In any case, on that day, the Louisville native admitted that age was weighing on him, although it was rather his incessant boxing activity.