Melbourne - Serbia's Novak Djokovic has urged fans not to repeat ugly scenes seen at recent Australian Opens, as he set up a potentially explosive second round match against Croatia's Ivan Dodig.
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The third-seeded Djokovic eased through to the next round with a comfortable straight-sets win over Spaniard Marcel Granollers to line up the showdown, which will put organisers and police on alert.
Melbourne Park has repeatedly been the scene for skirmishes between chanting Serbian and Croatian fans letting off flares, and draped in the national flags of the countries which were at war in the 1990s.
Djokovic expressed hope there will be no repeat of the ethnic-related trouble, stressing that Serbian and Croatian players were all good friends.
"Well, I just hope that it's not going to happen," Djokovic said. "It's a very bad image that they send for their countries, you know.
"We don't support that at all. We are very good friends actually off the court, all of us Serbian and Croatian players. There's no reason to create any kind of bad feeling about our countries.
"We did have problems in the past, but that doesn't concern us.
Australia is home to large numbers of ethnic Serbs and Croats, including tennis player Jelena Dokic, whose families emigrated to escape ethnic conflict.
"We are athletes. We are friends off the court. You're never going to see a problem between us. Hopefully nothing will happen," Djokovic said.
Collated results from day one of the Australian Open at Melbourne Park here Monday (x denotes seeding):
Men
Tomas Berdych (CZE x6) bt Marco Crugnola (ITA) 6-4, 6-0, 6-2
Philipp Kohlschreiber (GER) bt Tobias Kamke (GER) 1-6, 4-6, 7-6 (8/6), 6-4, 6-4
Adrian Mannarino (FRA) bt Ryan Harrison (USA) 6-4, 6-3, 6-4
Richard Gasquet (FRA x28) bt Frank Dancevic (CAN) 6-3, 6-4, 6-4
Florian Mayer (GER) bt Nikolay Davydenko (RUS x23) 6-3, 4-6, 7-6 (7/4), 6-4
Kei Nishikori (JPN) bt Fabio Fognini (ITA) 6-1, 6-4, 6-7 (4/7), 6-4
Janko Tipsarevic (SRB) bt Mischa Zverev (GER) 6-3, 6-1, 6-4
Fernando Verdasco (ESP x9) bt Rainer Schuettler (GER) 6-1, 6-3, 6-2
Nicolas Almagro (ESP x14) bt Stephane Robert (FRA) 6-4, 6-3, 6-7 (4/7), 7-5
Igor Andreev (RUS) bt Filippo Volandri (ITA) 6-3, 7-6 (7/3), 6-3
Benoit Paire (FRA) bt Flavio Cipolla (ITA) 6-1, 7-5, 6-1
Ivan Ljubicic (CRO x17) bt Peter Luczak (AUS) 6-3, 6-3, 7-6 (7/2)
Viktor Troicki (SRB x29) bt Dmitry Tursunov (RUS) 6-2, 3-6, 6-2, 6-0
Nicolas Mahut (FRA) bt Brian Dabul (ARG) 6-3, 6-4, 6-4
Ivan Dodig (CRO) bt Ivo Karlovic (CRO) 6-4, 3-6, 6-7 (5/7), 6-4, 6-4
Novak Djokovic (SRB x3) bt Marcel Granollers (ESP) 6-1, 6-3, 6-1
Andy Roddick (USA x8) bt Jan Hajek (CZE) 6-1, 6-2, 6-2
Igor Kunitsyn (RUS) bt Michal Przysiezny (POL) 6-7 (1/7), 6-4, 6-4, 7-6 (8/6)
Robin Haase (NED) bt Carlos Berlocq (ARG) 6-4, 6-3, 7-6 (7/5)
Juan Monaco (ARG x26) bt Simon Greul (GER) 7-6 (7/5), 7-6 (7/4), 6-2
Stanislas Wawrinka (SUI x19) bt Teimuraz Gabashvili (RUS) 7-6 (7/3), 6-4, 6-4
Grigor Dimitrov (BUL) bt Andrey Golubev (KAZ) 6-1, 6-4, 6-2
Frederico Gil (POR) bt Pablo Cuevas (URU) 6-4, 6-7 (7/9), 4-6, 6-3, 9-7
Gael Monfils (FRA x12) bt Thiemo de Bakker (NED) 6-7 (5/7), 2-6, 7-5, 6-2, 6-1
Mardy Fish (USA x16) bt Victor Hanescu (ROM) 2-6, 4-6, 6-3, 7-5, 6-3
Tommy Robredo (ESP) bt Somdev Devvarman (IND) 7-6 (7/4), 6-3, 6-4
Sergiy Stakhovsky (UKR) bt Daniel Brands (GER) 6-2, 6-3, 6-4
Lukasz Kubot (POL) bt Sam Querrey (USA x18) 5-7, 6-2, 3-6, 6-1, 8-6
Albert Montanes (ESP x25) bt Dustin Brown (GER) 6-4, 6-2, 3-6, 2-6, 7-5
Xavier Malisse (BEL) bt Pablo Andujar (ESP) 6-1, 6-2, 7-6 (7/3)
Gilles Simon (FRA) bt Lu Yen-Hsun (TPE) 6-7 (3/7), 6-2, 6-4, 6-2
Roger Federer (SUI x2) bt Lukas Lacko (SVK) 6-1, 6-1, 6-3
Ladies
Caroline Wozniacki (DEN x1) bt Gisela Dulko (ARG) 6-3, 6-4
Vania King (USA) bt Tamira Paszek (AUT) 6-7 (4/7), 6-0, 6-3
Alberta Brianti (ITA) bt Lucie Hradecka (CZE) 6-4, 7-5
Dominika Cibulkova (SVK x29) bt Angelique Kerber (GER) 6-2, 6-7 (4/7), 6-4
Yanina Wickmayer (BEL x21) bt Jarmila Groth (AUS) 6-3, 2-6, 6-4
Anastasija Sevastova (LAT) bt Polona Hercog (SLO) 6-4, 7-6 (7/5)
Vesna Manasieva (RUS) bt Laura Pous (ESP) 7-5, 6-2
Marion Bartoli (FRA x15) bt Tathiana Garbin (ITA) 6-0, 6-0
Justine Henin (BEL x11) bt Sania Mirza (IND) 5-7, 6-3, 6-1
Elena Baltacha (SCO) bt Jamie Hampton (USA) 3-6, 6-4, 7-5
Arantxa Rus (NED) bt Bethanie Mattek-Sands (USA) 6-1, 3-6, 7-5
Svetlana Kuznetsova (RUS x23) bt Alison Riske (USA) 6-3, 6-2
Tsvetana Pironkova (BUL x32) bt Pauline Parmentier (FRA) 6-4, 3-6, 6-3
Monica Niculescu (ROM) bt Timea Bacsinszky (SWI) 6-0, 6-3
Rebecca Marino (CAN) bt Junri Namigata (JPN) 6-2, 4-6, 6-3
Francesca Schiavone (ITA x6) bt Arantxa Parra (ESP) 6-7 (4/7), 6-2, 6-4
Venus Williams (USA x4) bt Sara Errani (ITA) 6-3, 6-2
Sandra Zahlavova (CZE) bt Renata Voracova (CZE) 6-3, 6-1
Anne Keothavong (GBR) bt Arina Rodionova (RUS) 7-5, 6-4
Andrea Petkovic (GER x30) bt Jill Craybas (USA) 6-1, 6-2
Kaia Kanepi (EST x20) bt Magdalena Rybarikova (SVK) 2-6, 6-4, 6-3
Julia Gorges (GER) bt Edina Gallovits (ROM) 6-3, 4-6, 6-3
Virginie Razzano (FRA) bt Elena Vesnina (RUS) 4-6, 6-3, 6-3
Maria Sharapova (RUS x14) bt Tamarine Tanasugarn (THA) 6-1, 6-3
Na Li (CHN x9) bt Sofia Arvidsson (SWE) 6-1, 7-5
Evgeniya Rodina (RUS) bt Olivia Rogowska (AUS) 6-3, 6-1
Jelena Dokic (AUS) bt Zuzana Ondraskova (CZE) 6-3, 6-2
Barbora Zahlavova Strycova (CZE) bt Aravane Rezai (FRA x17) 6-0, 3-6, 7-5
Regina Kulikova (RUS) bt Daniela Hantuchova (SVK x28) 7-6 (7/3), 3-6, 9-7
Chanelle Scheepers (RSA) bt Karolina Sprem (CRO) 4-6, 6-4, 6-2
Andrea Hlavackova (CZE) bt Patricia Mayr (AUT) 7-5, 6-4
Victoria Azarenka (BLR x8) bt Kathrin Woerle (GER) 6-0, 6-2