#2 Cristiano Ronaldo
Honours at the club: 3 x Premier League, 1 x FA Cup, 2 x EFL Cup, 1 x Community Shield, 1 x UEFA Champions League, 1 x FIFA Club World Cup
None can forget that skinny 18-year-old who came all the way from Lisbon to Manchester to fulfill a destiny not many have enjoyed in the history of the sport before.
Well, when a group of Manchester United players are pleading their boss for signing you after just playing for 45 minutes, you are surely destined for a great legacy, aren't you?
Amidst a number of suitors lining up for a young Cristiano Ronaldo, Sir Alex got him for a £17.10 million fee in 2003.
At just 18, he sported the No. 7 jersey, apparently, the one that is reserved for the greatest legends to play at Old Trafford.
Knowing that a glorious history is associated with that number, Ronaldo didn't disappoint after succeeding a titan like David Beckham as the club's next No. 7.
With his silky dribbling skills, an endless bag of tricks, sheer perseverance and determination and above all, an indestructible positive mentality, he was already on the path to becoming the world's greatest player at the age of just 24 when he won his first and only Ballon d'Or with United.
Ronaldo struck a wonderful partnership with a young Wayne Rooney as the duo ushered another era of glory in the first decade of the 21st century, seeing off a challenge from Jose Mourinho's Chelsea.
He left for a world record £84.60 million fee in 2009 to perceive his dream to play for Real Madrid. He scored 118 goals in 292 appearances for the Red Devils.
Indeed, so dynamic was his impact that Manchester United are still searching for a worthy name to succeed him as the next No.7, even after a decade of his departure.