Unseeded Taylor Fritz of Palos Verdes reached the third round for the second straight year with a 6-4, 7-6(4) upset of No. 27 seed Andrey Rublev of Russia. Fritz, who served nine aces with no double faults, will face unseeded Fernando Verdasco of Spain, who stunned No. 3 seed Grigor Dimitrov of Bulgaria 7-6(4), 4-6, 6-3. “I feel like I got a lot of momentum and played really well in a lot of the big moments of the match,” said Fritz, a huge crowd favorite at Stadium 2…. No. 5 seed Dominic Thiem of Austria held off 19-year-old Stefanos Tsitsipas of Greece to win 6-2, 3-6, 6-3…. No. 12 Tomas Berdych of the Czech Republic advanced in straight sets over Maximilian Marterer of Germany… No. 30 seed Pablo Cuevas of Uruguay defeated 18-year-old Canadian Denis Shapovalov 7-6(4), 6-3.