Richard Gasquet defeated Marco Cecchinato 6-4, 6-2 in the first round of the Dubai Championships for his 550th career victory on Monday. German player Jan-Lennard Struff defeated Mikhail Kukushkin 6-3, 6-2 for a second-round match against the third-seeded Denis Shapovalov. Harris reward for beating Christopher OConnell 6-7, 6-4, 6-1 is a match against top seed Dominic Thiem, and Ruusuvuori defeated …