Novak Djokovic winning the Australian Open with Bill Gates in attendance was the icing on the cake. Djokovic’s revenge arc is complete! 

One year ago, Novak Djokovic was robbed of the Slam record, the #1 ranking, and a 10th Australian Open title. One year later, Novak Djokovic achieved the Slam record, became #1, and won a 10th Australian Open title. This is poetic justice. 

Watching Novak Djokovic cry during Roger Federer's retirement shows that despite the rivalry they are still human at the end of the day and have enormous respect for one another. This is what tennis is all about.