Novak Djokovic is by many considered one of the best players of all time but is he the most complete player of all time, well that might be the case as well.
With his win at the Roland Garros, Djokovic is now the only male player to have won each grand slam at least three times in his career. No other player including legendary rivals like Rafael Nadal and Roger Federer didn't do that in their careers. Not only that, Djokovic also has the most grand slam ever by a man with 23 and that number might increase in a month at the Wimbledon Open.
He also has a very impressive winning percentage at each of the grand slams with all of those being over 85 %. For example, the Australian Open has been his strongest grand slam traditionally and he holds a winning percentage at the event of 91.75%. That's just incredible and it is only better by a few players such as Nadal at Roland Garros which quite possibly has been the most dominant run of a player at an event in history.
The French Open for Djokovic holds an 85.19% which is impressive. It's certainly of the best marks in history proving him to be a crazy good player on the red dirt as well. Wimbledon has obviously been a very strong event for him in recent years, particularly as Federer's level dropped off in the past decade.
The winning percentage at that event is 89.58% and that might become even higher in a month. In fact it's very likely to happen. The final event is the US Open, an event where Djokovic had a lot of heartbreak over the years losing multiple finals there. The winning percentage proves that with 86.17% which is the second worst mark.