(CNN) -- Juan Martin del Potro suffered a shock second-round defeat at the Australian Open in the early hours of Friday morning crashing out to world no. 62 Roberto Bautista Agut. The no. 5 seed arrived in Melbourne in good form after demolishing Bernard Tomic in straight sets in the final of the Sydney International tournament last Sunday. But on a day of extreme heat followed by storms, the Argentine wilted in the face of some excellent serving by the Spaniard losing 4-6 6-3 5-7 6-4 7-5 in three hours 53 minutes. "I feel comfortable on these courts. These courts are good for my game," Bautista Agut said following his epic win which finished at 1.20 am local time.
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Argentine crashes out in five sets to world no. 62 Roberto Bautista Agut
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Federer, Murray and Nadal all safely through to third round after straight-set wins
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Maria Sharapova comes through marathon match against Italy's Karin Knapp
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2013 champ Azarenka wins in straight sets 6-1 6-4 against Barbora Zahlavova Strycova
@placeholder's reward is a third round match against world no.