U.S. Open champion Andy Murray had another easy win at the Australian Open on Thursday, a 6-2, 6-2, 6-4 victory over Joao Sousa of Portugal.
Murray, who ended a 76-year drought by British men in Grand Slam tournaments with his win at Flushing Meadows last year, dropped only seven games in his opening match against Robin Haase of the Netherlands.
On Thursday, the third-seeded Murray didn't allow Sousa a single break point chance in steamy conditions at Melbourne Park.
Standing in the way of a potential second Grand Slam title for Murray is semifinalist Roger Federer.
Federer continued his bid for a fifth title at Melbourne Park, advancing to the third round of the Australian Open with a 6-3, 6-4, 6-4 win over Russian veteran Nikolay Davydenko on Wednesday.
The second-ranked Federer, who has four Australian titles among his 17 Grand Slams, extended his career record to 18-2 against Davydenko.
The 31-year-old Swiss star will next play local hope Bernard Tomic, who beat German qualifier Daniel Brands 6-7 (4), 7-5, 7-6 (3), 7-6 (8) earlier Thursday and is last Australian player in either singles draw.
Federer won the Australian Open in 2004, `06, `07 and 2010.
Juan Martin del Potro has defeated Benjamin Becker 6-2, 6-4, 6-2 to advance to the third round of the Australian Open without dropping a set.
The 2009 U.S. Open champion is one of only four men left in the draw with a Grand Slam title, along with Roger Federer, Andy Murray and Novak Djokovic.
The sixth-seeded del Potro had 22 aces and 50 winners Thursday night against the overmatched Becker, who had just one breakpoint chance in the match.
Del Potro last year equaled his best result at the Australian Open by making the quarterfinals, where he lost to Federer.
Others advancing Thursday include: 2008 Australian finalist Jo-Wilfried Tsonga, who pretended to do push-ups to disguise a fall during his 6-3, 7-6 (1), 6-3 win over Japan's Go Soeda; No. 13 Milos Raonic of Canada; No. 17 Philipp Kohlschreiber of Germany; No. 21 Andreas Seppi of Italy; and Lithuanian qualifier Ricardas Berankis ousted No. 25 Florian Mayer 6-2, 6-3, 6-1.