Del Potro, Bautista Agut to meet in ASB Classic final

Auckland Final

Auckland Final

Spain's Ferrer, a four-time Auckland champion, disposed of the young Korean 6-3, 6-2 in their quarter-final match to set up a showdown with Juan Martin del Potro in the final four.

The Argentine world number 12 now goes into a final against 2016 Auckland champion Bautista Agut, who came from behind in an epic a battle against Dutchman Robin Haase featuring three tie-breaks.

Despite his loss, Argentinian Del Potro - who was eyeing a 21st ATP crown - is set to return to the top 10 in the rankings.

Del Potro, who sealed the Auckland title in 2009, shone in the key moments and fought off six of the seven break points Ferrer forged in a tense clash, with two games in the second set lasting nearly 10 minutes apiece.

Bautista Agut broke Haase in the seventh game of the second set but Haase immediately broke back and the set again went to a tiebreak.

Earlier, fifth seed Bautista Agut outlasted Dutchman Robin Haase in an epic clash that took nearly three hours before the Spaniard produced an audacious backhand lob that kissed the baseline to clinch the 6-7 (7) 7-6 (3) 7-6 (5) win.

"When I had to play in the sun it was very tough for me", del Potro said.

"Roberto played solid in the last two games of the match - that was key". Every weapon in their armoury was on display, with Haase even switching his racquet from the right toleft hand to reach shots swinging away down the backhand side.Del Potro and Ferrer's rallies were generally shorter as they slugged it out from the base line.

"And then I think my game improved a little bit". I've been fighting a lot on the court, and I couldn't believe I was playing my best tennis. I knew it was going to be important, the beginning of the match. He again saved a break point before winning the set in 50 minutes.