Top seed Kei Nishikori crashed out in the second round of the Dubai Tennis Championships on Wednesday with a 7-5, 5-7, 6-2 loss to 77th-ranked Hubert Hurkacz of Poland.In their first career meeting, the 22-year-old Hurkacz served nine aces and double faulted just once to upset the favorite from Japan in 2 hours, 3 minutes.World No. 6 Nishikori, on the other hand, struggled with his serve, hitting four double faults and a solitary ace at Dubai Duty Free Tennis Stadium."I didn't make my first serve when it mattered, but more than that, I just couldn't find a rhythm," the 29-year-old Nishikori…READ FULL ARTICLE