Beckham was also full of praise for Ronaldo, and thanked him for playing a part in his 2003 transfer from Manchester United.
The Englishman left United after 12 years in 2003, signing for £25million.
And he thanked Ronaldo for helping him integrate into the fabric of the club.
Beckham explained that, due to the culture difference, it was difficult to make the switch from the Premier League to La Liga, but that Ronaldo helped him do it.