Jakub Mensik—who is he? The up-and-coming player who Novak Djokovic personally invited  

Former Wimbledon champion Murray had set point in the first set then rallied from two breaks down at 5-2 in the third as his youthful opponent's jitters grew.  

But Mensik showed his class to win the Qatar Open's longest match after three hours and 24 minutes.  

He stunned world No. 5 and event top seed Andrey Rublev by winning 6-4, 7-6 (8-6) against the ten-time Grand Slam quarterfinalist.  

The youngster's wildcard entry in his first ATP 250 makes his run even more spectacular  

The Next Gen Accelerator Programme awards top 250 players under 20 wildcards into one ATP 250 tournament.  

who won the title here in 2018 and is Doha's oldest semi-finalist at 37, almost double Mensik's age.  

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