The Portuguese forward made his name in England, scoring 118 goals in 292 appearances across a six-year span, earning him a big-money move to Spain.
However, United fans haven't forgotten the impact Ronaldo had at the club, even if he did leave over nine years ago.
Following the conclusion of their 2017-18 Premier League campaign, 'Red Devils' supporters were given the chance to vote for their best player since 1992 through the club's official website.
Surpassing legends such as David Beckham, Wayne Rooney and Eric Cantona, Ronaldo secured top position ahead of Ryan Giggs in second and Paul Scholes in third.
His stand-out season for United was in 2007-08 when he finished as the Premier League's highest ever goalscoring with 31 goals - only broken this year by Liverpool's Mohamed Salah (32).
It seems time won't stop Ronaldo being a legend in Manchester...