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.
C Ronaldo is widely known as "CR7".
Ronaldo's nickname CR7 is a basic nickname, but from the marketing point of view, it is-and still is-ideal. 1998, his sponsor Nike sold Mercurial boots through another Ronaldo (now often referred to as the "original") and achieved great success.
Inspired by the name and number of the Brazilian, the new Mercurial boots worn by this star in the 1998 World Cup are called "R9". In this sense, the nicknames of CR7 and R9 are very similar, although the former undoubtedly surpasses its predecessor in iconic status. Nike even has its own CR7 product line, including football shoes, balls and training equipment.