Former American tennis star James Blake mentioned Rafael Nadal, Roger Federer and Novak Djokovic while building his “unbeatable player.” When it comes to the mental game, Blake said his unbeatable player would have the mental strength of Nadal. “There’s so many mentally tough players … but I just think what he’s (Rafael Nadal) done mentally, the way he, I mean you’ve never seen him once smash a racket on court. You’ve never seen him get down on himself to the point where it seems like it affects the next point, you don’t see him getting onto people’s faces,” Blake said, per Sportskeeda. “He’s extremely excited, he’s pumped up and he’s the guy that in the first round of a tournament, in the final of a tournament, looks like he is competing for every single point. Down 40-love in the first game, he m …