Jakub Mensik outdueled Novak Djokovic in two tiebreakers 7-6 (4), 7-6 (4) to win the Miami Open for his first ATP title.

Jakub Mensik used his length to shrink the court, erasing Novak Djokovic's ability to find winners in a shock upset for his first career tennis title Sunday at the Miami Open. The No. 54 player in the world also denied Djokovic of his 100th career title and a record seventh Miami Open crown.

Heavy rain poured down on Hard Rock Stadium Sunday afternoon and there was lightning in the area, delaying the start of the Miami Open men’s final between 24-time Grand Slam champion Novak Djokovic and 19-year-old Czech newcomer Jakub Mensik.