New York - Top-seeded Novak Djokovic shrugged off his mediocre run-up to the US Open by outclassing Diego Schwartzman of Argentina 6-1 6-2 6-4 to close the first day of the US Open on Monday.
The Wimbledon champion, who won only two matches on the North American hard courts after getting married days after his All England Club triumph last month, sprinted to victory in 97 minutes.
"I'm very pleased," Djokovic told the Arthur Ashe Stadium crowd after the one-sided win. "It's never easy to start a US Open smoothly."
Seven-times grand slam winner Djokovic, who won at Flushing Meadows in 2011, put on a masterful display, cracking 24 winners including seven aces against Schwartzman, who was playing his first tour-level match on the surface.
The Serbian world number one will next play Paul-Henri Mathieu of France, who was extended to five sets by Gilles Muller of Luxembourg in a match that included three tie-breaks.
Results on Monday from the first day of the US Open, the final Grand Slam tournament of the season (x denotes seeded player):
Men
1st rd
Novak Djokovic (SRB x1) bt Diego Schwartzman (ARG) 6-1, 6-2, 6-4
Paul-Henri Mathieu (FRA) bt Gilles Muller (LUX) 6-7 (7/9), 7-5, 7-6 (8/6), 6-7 (5/7), 6-1
Philipp Kohlschreiber (GER x22) bt Facundo Bagnis (ARG) 6-2, 7-6 (7/3), 6-3
Michael Llodra (FRA) bt Daniel Gimeno (ESP) 6-4, 6-3, 7-5
Jo-Wilfried Tsonga (FRA x9) bt Juan Monaco (ARG) 6-3, 4-6, 7-6 (7/2), 6-1
Aleksandr Nedovyesov (KAZ) bt James McGee (IRL) 4-6, 6-2, 6-1, 7-6 (7/3)
Pablo Carreno-Busta (ESP) bt Andreas Beck (GER) 6-3, 4-6, 6-2, 7-6 (7/0)
Benoit Paire (FRA) bt Julien Benneteau (FRA x24) 7-6 (7/4), 5-7, 6-4, 4-6, 6-4
Fernando Verdasco (ESP x31) bt Blaz Rola (SLO) 6-3, 3-6, 7-5, 1-6, 6-4
Andrey Kuznetsov (RUS) bt Bradley Klahn (USA) 6-4, 4-6, 6-3, 7-5
Matthias Bachinger (GER) bt Radek Stepanek (CZE) 6-3, 6-2, 6-2
Andy Murray (GBR x8) bt Robin Haase (NED) 6-3, 7-6 (8/6), 1-6, 7-5
Stanislas Wawrinka (SUI x3) bt Jiri Vesely (CZE) 6-2, 7-6 (8/6), 7-6 (7/3)
Thomaz Belluci (BRA) bt Nicolas Mahut (FRA) 7-6 (7/4), 6-4, 6-1
Blaz Kavcic (SLO) bt Donald Young (USA) 7-5, 6-4, 6-4
Jeremy Chardy (FRA x30) bt Alejandro Falla (COL) 6-7 (5/7), 6-2, 7-5, 6-4
Nick Kyrgios (AUS) bt Mikhail Youzhny (RUS x21) 7-5, 7-6 (7/4), 2-6, 7-6 (7/1)
Andreas Seppi (ITA) bt Sergiy Stakhovsky (UKR) 6-3, 6-1, 6-4
Simone Bolelli (ITA) bt Vasek Pospisil (CAN) 2-6, 6-4, 6-2, 3-6, 6-3
Tommy Robredo (ESP x16) bt Edouard Roger-Vasselin (FRA) 6-4, 6-3, 6-4
Matthew Ebden (AUS) bt Tobias Kamke (GER) 6-4, 6-3, 7-6 (7/2)
Leonardo Mayer (ARG x23) bt Albert Montanes (ESP) 6-2, 3-0 - retired
Peter Gojowczyk (GER) bt Benjamin Becker (GER) 6-2, 6-4, 6-2
Milos Raonic (CAN x5) bt Taro Daniel (JPN) 6-3, 6-2, 7-6 (7/1)
Women
1st rd
Angelique Kerber (GER x6) bt Ksenia Pervak (RUS) 6-2, 3-6, 7-5
Alla Kudryavtseva (RUS) bt Duan Ying-Ying (CHN) 2-6, 6-2, 6-4
Belinda Bencic (SUI) bt Yanina Wickmayer (BEL) 6-3, 6-2
Kurumi Nara (JPN x31) bt Aleksandra Wozniak (CAN) 6-2, 6-1
Sloane Stephens (USA x21) bt Annika Beck (GER) 6-0, 6-3
Johanna Larsson (SWE) bt Virginie Razzano (FRA) 6-0, 6-0
Tsvetana Pironkova (BUL) bt Karin Knapp (ITA) 6-4, 6-3
Jelena Jankovic (SRB x9) bt Bojana Jovanovski (SRB) 6-2, 6-3
Lucie Safarova (CZE x14) bt Timea Babos (HUN) 6-4, 7-5
Zheng Saisai (CHN) bt Stefanie Voegele (SUI) 1-6, 6-2, 6-2
Daniela Hantuchova (SVK) bt Romina Oprandi (SUI) 4-6, 6-2, 6-3
Alize Cornet (FRA x22) bt Amandine Hesse (FRA) 6-1, 6-2
Roberta Vinci (ITA x28) bt Paula Ormaechea (ARG) 6-3, 6-3
Irina Begu (ROM) bt Silvia Soler-Espinosa (ESP) 7-6 (7/4), 6-3
Peng Shuai (CHN) bt Zheng Jie (CHN) 6-3, 6-3
Agnieszka Radwanska (POL x4) bt Sharon Fichman (CAN) 6-1, 6-0
Maria Sharapova (RUS x5) bt Maria Kirilenko (RUS) 6-4, 6-0
Alexandra Dulgheru (ROM) bt Kristyna Pliskova (CZE) 6-3, 6-4
Madison Brengle (USA) bt Julia Glushko (ISR) 6-3, 6-2
Sabine Lisicki (GER x26) bt Francoise Abanda (CAN) 6-3, 7-5
Andrea Petkovic (GER x18) bt Ons Jabeur (TUN) 7-6 (9/7), 1-6, 6-3
Monica Puig (PUR) bt Tereza Smitkova (CZE) 3-6, 6-3, 6-3
Aliaksandra Sasnovich (BLR) bt Anna Karolina Schmiedlova (SVK) 6-4, 6-3
Caroline Wozniacki (DEN x10) bt Magdalena Rybarikova (SVK) 6-1, 3-6, 2-0 retired
Sara Errani (ITA x13) bt Kirsten Flipkens (BEL) 6-1, 7-5
Anastasia Rodionova (AUS) bt Camila Giorgi (ITA) 1-6, 7-5, 6-3
Timea Bacsinszky (SUI) bt Kiki Bertens (NED) 6-7 (7/9), 4-3 retired
Venus Williams (USA x19) bt Kimiko Date Krumm (JPN) 2-6, 6-3, 6-3
Mirjana Lucic-Baroni (CRO) bt Garbine Muguruza (ESP x25) 6-3, 7-6 (7/4)
Shahar Peer (ISR) bt Johanna Konta (GBR) 6-2, 6-3
Jana Cepelova (SVK) bt Maria-Teresa Torro-Flor (ESP) 2-6, 7-5, 6-1
Simona Halep (ROM x2) bt Danielle Collins (USA) 6-7 (2/7), 6-1, 6-2