Melbourne - Aggressive defending champion Caroline Wozniacki powered into the Australian Open third round on Wednesday with a confidence-boosting romp over Sweden's Johanna Larsson.
The third seeded Dane snuffed out a late rally from the world number 77 to win 6-1, 6-3 and continue her bid to become the first woman to defend the Australian title since Victoria Azarenka in 2013.
Wozniacki moved freely, showing no sign of the rheumatoid arthritis that has threatened to derail her career, with the win potentially setting up a glamour third round clash with Russia's Maria Sharapova, who plays later.
"I thought I started pretty well, started aggressively, but she started making less errors and I was just trying to stay consistent," the 28-year-old said.
Wozniacki came out of the blocks quickly, leaving Larsson reeling as she conceded only two points on the way to a 3-0 lead.
The Swede regrouped from the early onslaught but Wozniacki continued to dictate terms and showed no signs of fatigue as she moved Larsson around the court during long rallies.
She wrapped up the first set in 27 minutes, pouncing on Larsson's popgun serve and coping easily when the Swede tried to put her under pressure by attacking the net, making 95 percent of her returns.
Wozniacki's intensity eased slightly in the second set and there was a minor wobble late in the match when Larsson threatened a break.
"She started making less errors, playing it deep, coming into the net and threw my timing off a little bit," she said.
"I just tried to stay as aggressive as I could be until the and I think I served well when I had to."
Wozniacki said she felt no additional pressure coming into the tournament as defending champion and was enjoying her campaign after two straight sets wins in the opening rounds.
"It feels amazing. I felt at home straight away when I got here," she said.
Results from Day 3 of the Australian Open on Wednesday:
Stefanos Tsitsipas (GRE x14) bt Viktor Troicki (SRB) 6-3, 2-6, 6-2, 7-5
Nikoloz Basilashvili (GEO x19) bt Stefano Travaglia (ITA) 3-6, 6-3, 3-6, 6-4, 6-3
Tomas Berdych (CZE) bt Robin Haase (NED) 6-1, 6-3, 6-3
Andreas Seppi (ITA) bt Jordan Thompson (AUS) 6-3, 6-4, 6-4
Diego Schwartzman (ARG x18) bt Denis Kudla (USA) 6-4, 7-5, 3-6, 6-7 (6/8), 6-4
Marin Cilic (CRO x6) bt Mackenzie McDonald (USA) 7-5, 6-7 (9/11), 6-4, 6-4
Frances Tiafoe (USA) bt Kevin Anderson (RSA x5) 4-6, 6-4, 6-4, 7-5
Fernando Verdasco (ESP x26) bt Radu Albot (MDA) 6-1, 7-6 (7/2), 6-3
Karen Khachanov (RUS x10) bt Yoshihito Nishioka (JPN) 6-3, 6-3, 6-3
Roger Federer (SUI x3) bt Daniel Evans (GBR) 7-6 (7/5), 7-6 (7/3), 6-3
Taylor Fritz (USA) bt Gael Monfils (FRA x30) 6-3, 6-7 (8/10), 7-6 (8/6), 7-6 (7/5)
Roberto Bautista Agut (ESP x22) bt John Millman (AUS) 6-3, 6-1, 3-6, 6-7 (6/8), 6-4
Grigor Dimitrov (BUL x20) bt Pablo Cuevas (URU) 6-3, 6-7 (5/7), 6-3, 7-5
Thomas Fabbiano (ITA) bt Reilly Opelka (USA) 6-7 (15/17), 6-2, 6-4, 3-6, 7-6 (10/5)
Alex de Minaur (AUS x27) bt Henri Laaksonen (SUI) 6-4, 6-2, 6-7 (7/9), 4-6, 6-3
Rafael Nadal (ESP x2) bt Matthew Ebden (AUS) 6-3, 6-2, 6-2
Sloane Stephens (USA x5) bt Timea Babos (HUN) 6-3, 6-1
Petra Martic (CRO x31) bt Marketa Vondrousova (CZE) 6-4, 7-5
Aliaksandra Sasnovich (BLR) bt Anett Kontaveit (EST x20) 6-3, 6-3
Caroline Garcia (FRA x19) bt Zoe Hives (AUS) 6-3, 6-3
Ashleigh Barty (AUS x15) bt Wang Yafan (CHN) 6-2, 6-3
Anastasia Pavlyuchenkova (RUS) bt Kiki Bertens (NED x9) 3-6, 6-3, 6-3
Amanda Anisimova (USA) bt Lesya Tsurenko (UKR x24) 6-0, 6-2
Maria Sakkari (GRE) bt Astra Sharma (AUS) 6-1, 6-4
Danielle Collins (USA) bt Sachia Vickery (USA) 6-3, 7-5
Caroline Wozniacki (DEN x3) bt Johanna Larsson (SWE) 6-1, 6-3
Kimberly Birrell (AUS) bt Donna Vekic (CRO x29) 6-4, 4-6, 6-1
Petra Kvitova (CZE x8) bt Irina Begu (ROU) 6-1, 6-3
Belinda Bencic (SUI) bt Yulia Putintseva (KAZ) 7-5, 4-6, 6-2
Aryna Sabalenka (BLR x11) bt Katie Boulter (GBR) 6-3, 6-4
Angelique Kerber (GER x2) bt Beatriz Haddad Maia (BRA) 6-2, 6-3