#1 Wayne Rooney
Rooney has been the poster boy of modern-era teenage sensations in football. He was signed by the Red Devils in August 2004 after Ferguson sanctioned the move. Still 18, he scored a hat-trick on his debut in United's 6-2 victory over Fenerbahce in the Champions League.
He finished his first season as United's top scorer with 11 goals. Rooney went on to win 16 trophies with United including five Premier League titles, the Champions League and UEFA Europa League.
On January 21, 2017, Rooney became United's most prolific scorer in history with 250 goals when he scored a sizzling free kick against Stoke City in a 1-1 away draw. He surpassed the record set by Sir Bobby Charlton of 249 goals.
As captain, he lifted four trophies for the club in what was a stellar career. He also broke England's scoring record that Charlton held when at United to top with 53 goals in 119 appearances. At 32, he still has a lot of football left to play and holds a special place in United's history.