3. Cristiano Ronaldo

Ronaldo's status in this countdown is surely automatic. While the likes of Wayne Rooney and Robin van Persie have picked up the majority of the goalscoring slack at Old Trafford in recent seasons, Manchester United - unsurprisingly - have found it impossible to replace the sheer enigmatic presence of the Portuguese star.

The 28-year-old versatile attacker, who spent six successful years with the Premier League champions after being plucked from Sporting Lisbon in 2003, fulfilled a lifelong dream by joining Real Madrid for a then world-record fee in 2009.

Although many thought it impossible that Ronaldo could actually improve upon the supreme form he showed in England, he has done just that with a series of mesmerising displays that have left many seriously questioning if it is he - rather than arch-nemesis Lionel Messi - who is the best footballer on the planet.

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