Nicknames are very common in sports, and few people can recognize them more easily than C Ronaldo, who is widely known as "CR7".

Some of the greatest football players in history have been given friendly nicknames. Think about El Ilusionista (Andres Iniesta), Zizou (Zidane), Der Bomber (Gerd Müller) or Ofenomenono (Ronaldo Nazario), so it is not surprising that this Portuguese star has one of his own.

Since his breakthrough at Manchester United, the striker has been called CR7 and built a complete global brand around this nickname.

What does CR7 mean?

The nickname CR7 is a simple combination of Ronaldo's initials and his favorite number: Cristiano Ronaldo plus the number 7. Cristiano Ronaldo wore the No.28 jersey during Sporting Lisbon, and won the famous No.7 jersey after arriving at Manchester United. Alex ferguson persuaded his new disciple to follow in the footsteps of stars such as David Beckham, george best and george best.

Eric cantona later inherited the international No.7, replacing 17 with the traditional jersey of madeira filipe. Since then, every furniture club he has been to has worn this number.

However, it is worth noting that Cristiano Ronaldo was forced to wear the No.9 jersey when he first arrived in Real Madrid in 2009, because the legendary Raul of the club is still the No.7 jersey of the team.