PARIS, Oct 4 (Reuters) - Argentine 12th seed Diego Schwartzman continued his stealthy progress at the French Open as he reached the quarter-finals with a 6-1 6-3 6-4 victory over Italian Lorenzo Sonego on Sunday.
The 28-year-old Schwartzman was simply too solid for his unseeded opponent as he reached the last eight for the second time.
Schwartzman, like 12-times champion Rafa Nadal, has not dropped a set in his four matches and will face either Dominic Thiem or Hugo Gaston for a semi-final berth. (Reporting by Martyn Herman, editing by Ed Osmond)
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