|Spain's Rafael Nadal wipes the sweat after the retirement of Australia's Bernard Tomic in their men's singles match at 2014 Australian Open tennis tournament in Melbourne, Australia, Jan. 14, 2014. (Xinhua/Li Jundong)
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MELBOURNE, Jan. 14 (Xinhua) -- Top seed Rafael Nadal got an easy win to advance to the second round at the Australian Open here on Tuesday after his opponent Bernard Tomic retired injury after losing the first set 4-6.
Tomic left the court for a medical timeout for several minutes after the first three games and decided to retire with an apparent left thigh injury after losing the first set.
"I feel really sorry for Bernard," said Nadal. "It is very tough to go out of a tournament like this when you are playing at home."
"I was in that situation a few years ago and I know how though is to take that decision," added the Spaniard.
Nadal staged a remarkable comeback in 2013 after nine months out of the game with a career threatening knee injury, winning two Grand Slams and finishing the year as world No.1.
Nadal will play Aussie wildcard Thanasi Kokkinakis in the second round on Thursday.