As we all know, Ronaldo's self-discipline and fitness have long been notoriously strong. He has been strict with himself since he started his career. And many football superstars said: "Don't accept Cristiano Ronaldo's invitation easily, because going to his house will only let you exercise with him!" It can be seen that in order to maintain this state, C Ronaldo will exercise anytime and anywhere, hone his will and make himself better.