Monte Carlo Masters: Juan Martin Del Potro edges past Alexandr Dolgopolov
Juan Martin Del Potro stumbled through to the last 16 in Monte Carlo after defeating Alexandr Dolgopolov in three sets.
Last Updated: 18/04/13 3:24pm
The Argentine fifth seed - who was playing the event for the first time since 2009 - came through 1-6 6-4 6-3 against the unpredictable Ukrainian in exactly two hours.
Playing his first match since last month's Miami Masters, Del Potro came out of the blocks slowly, losing the opening set without much of a fight.
However, the 2009 French Open semi-finalist quickly took the initiative away from Dolgopolov to take the next two sets and advance to the next stage.
Del Potro will next play big-hitting Canadian Milos Raonic or Finland's Jarkko Nieminen for a place in the quarter-finals.
In Tuesday's other games, eighth seed Janko Tipsarevic suffered another early exit when he was beaten 7-6 6-1 by highly-rated Bulgarian Grigor Dimitrov.
World No 10 Tipsarevic, who has never made it past the third round at the claycourt Masters series event, extended his poor win-loss record to 2-6 since he reached the Australian Open last 16 in January.
The 34th-ranked Dimitrov, 21, recovered from a break down in the first set then easily prevailed in the tie-break. He then cruised to his first win of the season over a top-10 player to reach the last 16.
Local-favourite Jo-Wilfried Tsonga eased past Nikolay Davydenko 7-6 (7/3) 6-2 while Richard Gasquet defeated compatriot Benoit Paire 6-1 3-6 6-1 and German Philipp Kohlschreiber ended Pablo Andujar's campaign 6-2 2-6 7-6 (7/3).