Andy replaced Djokovic as number one earlier this month. Had Djokovic won this evening's match though Andy would have lost the title.
So, well done that lad! But, I agree, Hope, Djokovic has lost form over the last few months. Maybe, just maybe he has peaked (?)... there has to come a time.
The next lad to look-out for, I'd say, is Milos Raonic.... a very composed young man.