Novak Djokovic fell in the final round of the Miami Open to 19-year-old Jakub Mensik in straight sets, 7-6, 7-6, on Sunday. Mensik, playing in his first final, earned his spot after defeating No. 3 seed Taylor Fritz in the semifinals and became the second-youngest champion in tournament history, per ATP Tour.

Phenom Jakub Mensik, 19, upset Novak Djokovic in a rain-delayed Miami Open final, keeping Djokovic at 99 career titles.

Making matters worse, Mensik is a powerful player, which presents challenges for the gaining Djokovic. Mensik tallied 14 aces to Djokovic's seven. Additionally, the Czech teen won

Trying to win his 100th ATP Tour title, Djokovic ran into both the power and precision of the rising 19-year-old Czech.

Teenager Jakob Mensik denies his childhood idol Novak Djokovic a 100th ATP singles title with a superb performance to clinch the Miami Open title.

The 19-year-old Czech claimed his first ATP title at the Miami Open as he denied the former number one his bid for a milestone 100th.

Jakub Mensik wins his first ATP title at 19-years-old with victory over Novak Djokovic in the Miami Open final.

Teenager Jakub Menšík denied boyhood idol Novak Djokovic of his 100th career title, stunning the 24-time grand slam singles champion 7-6(4), 7-6(4) in Sunday’s Miami Open final.

Jakub Mensik claimed the first title of his career with a win over Novak Djokovic in the Miami Open final, but he did so only after a fortunate twist of fate.