MELBOURNE, Jan. 21 (Xinhua) -- Chinese Taipei's Lu Yen-Hsun advanced to the third round of a Grand Slam championship for the first time, when the 25-year-old defeated 10th-seeded Argentine David Nalbandian 6-4, 5-7, 4-6, 6-4, 6-2 in three hours and 55 minutes at the Australian Open on Wednesday.
Lu hit nine aces and 51 winners past last week's Sydney champion who squandered six break point opportunities in the final game.
The Argentine committed 61 unforced errors, one more than Lu, and converted six of 17 break point opportunities.
Lu, currently a career-high No. 61 in the world rankings, will next meet No. 21 seed Tommy Robredo of Spain in the third round.
Robredo cruised past Viktor Troicki of Serbia 6-1, 6-3, 6-0 in 82 minutes.