Ranked 54th entering the tournament, the Czech Republic teenager plowed through with poise and a stellar 130 mph serve.

Jakub and Novak were the players to beat at the Miami Open, forging the title clash with the biggest age difference in the Masters 1000 history! The apprentice ousted the master 7-6, 7-6 in two hours and three minutes for his first ATP title at 19!

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.