The faces of Cristiano Ronaldo over the years: Superstar has transformed himself from a 'feeble' teenager to one of the most recognisable athletes EVER - but has he used Botox to sharpen his features?

Cristiano Ronaldo remains one of the most famous faces in football - and, indeed, the world - but he has transformed his looks over the years.

Ronaldo, now 39 and plying his trade in Saudi Arabia with Al Nassr, first burst onto the scene at Manchester United in 2003 as a teenager with gaps in his teeth.

Across the following 21 years, he progressed from a self-confessed 'feeble' forward to a hulking, preening superstar who leads from the front for Portugal.

Cosmetic surgeons, however, believe he used plastic surgery to achieve his perfect appearance with the estimated costs for the procedures ranging in the thousands.