Top seeds David Ferrer and Philipp Kohlschreiber both survived scares to reach the quarter-finals of ATP men's tournament in Auckland
No 1 seed Ferrer suffered a mid-match slump as he came under pressure from Lu Yen-Hsun of Taiwan in the warm-up event for next week’s Australian Open, eventually grinding out a 6-4, 2-6, 6-3 victory.
Chasing a record-equalling fourth Auckland title, the Spanish World No 5 made a perfect start by breaking Lu in the second game, aided by three double faults from his opponent.
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Kohlschreiber, the second seed, was also unconvincing and committed 52 unforced errors and four double faults in a rusty 7-6 (7/4), 4-6, 6-3 win over Alejandro Falla.
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