Safin believes Kyrgios should be a warrior and not an entertainer

Safin said that Kyrgios should go through a different mentality to become a warrior instead of an entertainer and that in his opinion is the difference between him becoming a top ten player and not.

"I'm not judging and I know it's sensitive, and you hear three million times that if he gets serious, he can be a top-10 player," Safin said. "But I think he tries to hide his doubts by joking around.

Nick needs to face the pressure and be a warrior, not an entertainer. I think he's a great warrior; he needs to face and overcome the tough moments; after that, he could have a great career. Despite great potential, he struggles to find consistency and that's why the ranking bounces left and right.

Maybe those six months is enough time to rethink what he wants to do; time goes fast and he's not 18 anymore; if you don't wake up now, he'll look back, be 35-year-old and without a career."