Novak Djokovic is defying the aging process as he gets older, says former world number one Mats Wilander. Djokovic is 35-years-old now but he showed in the second half of last season that he is arguably better than ever. He has made a strong start at the Australian Open too, beating Roberto Carballes Baena 6-3, 6-4, 6-0 in the first round. While most players are just hanging on at that age or starting to decline, Djokovic only appears to be getting stronger, and Wilander is in awe of that. “His legs are a little bit stronger, he seems a little bit thicker, and the way that the game is going, it’s going faster, people are hitting the ball harder,” Wilander told Eurosport. “You just watch someone like Matteo Berrettini, the guys are smacking the ball.“Does Novak need to play like he did in the third set from the first point? Maybe against one or two or three players, but I think he’s going to play the way he wants to play in the beginning and then he has this reserve of just letting it go.“How young does he l …