According to Wikipedia, he is born on 22. May 1987, which makes him a weak Yin Metal. Now, I saw weak Yin Metals with great charts before, it’s nothing unusual, but when it comes to sports, it’s a bit less common. A strong BODY Component is needed.This is his chart. A Yin Metal with no Metal support, not even wet earth to act as a resource. What is also strange, there is not output (Water) to act as CREATIVITY Component. Goat combines with Rabbit which is quite good, it emphasizes Pioneer Talent, but that’s pretty much it. This chart is too hot, and on top of that, he is currently in a Tiger period, which stimulates even more Fire Element. But if we move his birthday one day forward, things are making more sense. A Yang Water Master Element with solid support from Metal and strong Creativity Component. Novak is a very outspoken type, he likes to argue with authority figures, like umpires, and this chart shows that clearly. The Monkey & Snake combo is great, emphasizing his independent spirit and good sense for business.
There is also a combination between Yang Water and Yin Fire, and between Monkey and Rabbit, which is very favorable. In 2017, during the Rooster year, he had a lot of trouble with his health and general form. He even dropped out of the top 10. Rooster attacked his Rabbit and pretty much messed up the whole chart setup.
All this is telling us that is most like that his birthday is on 23rd, not the 22nd of May. I would say that he is probably a border case, born around midnight, and somehow he slipped into a previous day in the official record, but it’s hard to say.
I’m avoiding doing analysis if the time of birth is questionable, so let’s just leave it as it is, with both options open, and who knows, maybe one day we will figure out his true birth time so that we can draw some better conclusions.