Novak's peak years seem to come in cycles. 2011, 2015-16, 2018-19. But it implies that he can also have lean years.
He will be completing his 34th year of life in May, 2021. On the plus side, he still has little top quality opposition younger than he is. Since 2011, he has enjoyed being the youngest multi-major winner playing.
Is this likely to change soon, and stop this all-time great in his tracks? Or will he still be able to win 2-3 majors in a year as he ages into his mid-30's? His top rival on clay is a year older, and on other surfaces, is almost half way into his 40th year. So he can continue dominating as he wishes.
Is health a concern (physical or mental)? Do you see a gradual or increased degradation of his champion's abilities?
Could his political ambitions and off court activities get in the way?
MTF Experts, weigh in.