Cristiano Ronaldo is one of the greatest footballers in history.What the Manchester United and Portugal superstar has achieved throughout his career up until now is quite extraordinary.Ronaldo is the leading scorer in men's professional football with 815 goals and a whopping 117 of those have come on international duty.No male footballer in history has rippled the back of the net more times for their country, the closest being Iran legend Ali Daei, who bagged 109.As well as being a marvellous footballer, Ronaldo is perhaps the most recognisable face on the planet these days.The 37-year-old has reached a level of fame that almost beggars belief, which is further highlighted by the fact that he's comfortably the most followed person on Instagram with over 450 million followers.Cristiano Ronaldo with PortugalLISBON, PORTUGAL - JUNE 09: Cristiano Ronaldo of Portugal reacts during the UEFA Nations League League A Group 2 match between Portugal and Czech Republic at Estadio Jose Alvalade on June 09, 2022 in Lisbon, Portugal. (Photo by Carlos Rodrigues/Getty Images)When you take all of that into account, it's perhaps no wonder that a ball boy was completely starstruck when Ronaldo gave him a high five during a match.The incident from Portugal's recent UEFA Nations League victory over Czech Republic was captured from the stands and to say it was wholesome would be something of an understatement.Check out the viral clip here...

Video: Ball boy's reaction to receiving high five from Ronaldo

You just love to see it.

Ronaldo fans around the world - of which there are millions - would probably all have reacted in the same manner if they received a high five from their hero.

The five-time Ballon d'Or winner has enjoyed a fairly productive time on international duty following the conclusion of the domestic season.

Ronaldo scored twice in Portugal's 4-0 home win over Switzerland and played the full 90 minutes against Czech Republic on Thursday.

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He's set to miss the team's final Nations League match in this block away at Switzerland on Sunday, along with Raphael Guerreiro and Joao Moutinho.

A well-earned rest for the seemingly ageless superstar.

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