Edwards was the player of his generation - potentially the best in the world - and only 21 when he was one of eight United players tradgically killed in the Munich Air Disaster of February, 1958.
The midfielder was the youngest player to play in the First Division when he made is debut for United aged 16 years, 154 days in 1953. He made his full England debut April, 1955 aged 18 years, 183 days - a record that stood until Michael Owen's debut in 1998.
In just five years, Edwards made 177 appearances for United and helped them back-to-back titles in 1956 and 1957. He also won 18 England caps, scoring five goals.
"I didn’t play against the Busby Babes but I played with a lot of those players for the British Army team, the likes of Bobby Charlton, Eddie Colman and, of course, Duncan Edwards. Dave Mackay was also in that team as well, we had quite a side!" said Cliff, a key member of our double team and the glory, glory years of the early 1960s.
"Duncan had everything, the skill, the physique, the commitment, he was just a great, great player.
"Bobby Charlton always said the only player he ever felt in awe of during his career was Duncan Edwards. That’s coming from the great Bobby Charlton, who many see as the greatest player himself!
"I'm sure he would have gone on to become the best player in the world, what a tragedy that he passed away aged just 21."
We're sharing Cliff's memories of United as we build-up to Sunday's Premier League clash at Old Trafford - he recalls some of his great games against the Reds in his Spurs career between 1958-68 here...