In seasons' final grand slam, the US Open, Rafael Nadal, Marin Cilic and Jo Wilfried Tsonga all have advanced to the 2nd round of Men's singles event. After a fine outing in Olympics, Spaniard Nadal defeated Uzbek's Denis Istomin in straight sets 6-1, 6-4, 6-2. 7th seeded Marin Cilic opened his campaign with a solid 6-4, 7-5, 6-1 victory over Rogerio Dutra Silva of Brazil.French strongman Jo Wilfried Tsonga also recored his first round victory over Argentine Guido Andreozz 6-3, 6-4, 6-4. In shocker, 13th-seeded Frenchman Richard Gasquet was upended 6-2, 6-2, 6-3 by Britain's world number 84 Kyle Edmund. While in women's singles event Olympic Gold medalist Puerto Rican Monica Puig bowed out in the first round. Meanwhile, the match of defending champion Novak Djokovic is currently underway against Polish Jerzy Janowicz.