Juan Martin del Potro dropped just five games en route to victory at the Australian Open
Juan Martin del Potro made short work of Adrian Mannarino as he booked his place in the second round.
Last Updated: 15/01/13 9:36am
The sixth seed from Argentina has not enjoyed the best of records in Melbourne but he dropped just five games en route to a 6-1 6-2 6-2 victory over the Frenchman.
Del Potro has never made it past the last eight, having lost in the quarter-finals in 2009 and 2012.
The 12th-ranked Marin Cilic also recorded a three-set victory after he brushed aside Marinko Matosevic - although he was forced to work harder for the win. Cilic eventually wore down his rival to win 6-4 7-5 6-2.
Gilles Simon, seeded 14, recovered from a set down before he overcame Filippo Volandri 2-6 6-3 6-2 6-2, while ninth seed Richard Gasquet saw off Albert Montanes 7-5 6-2 6-1.
Marcel Granollers, the No 30 seed, is through to the second round after Grega Zemlja retired hurt after two energy-sapping sets.
Granollers was leading 7-6 (8-6) 7-6 (7-5) 1-0 when Zemlja was forced to call it quits.
There was a minor shock on Show Court 3 as Jarkko Nieminen upset 19th seed Tommy Haas after an epic five-setter.
The Finn eventually won 7-6 (7-3) 4-6 6-3 6-4 8-6 after three hours 42 minutes.