Dusan Lajovic reached the Monte Carlo Masters semifinals for the first time after beating Lorenzo Sonego of Italy 6-4, 7-5 Friday.
The unseeded Lajovic has not dropped a set at the clay-court event. He won on his first match point against Sonego, who failed to become the first qualifier to reach the last four here since Richard Gasquet in 2005.
The 48th-ranked Lajovic, who is looking to win his first tournament, could next face 15-time Grand Slam champion Novak Djokovic in an all-Serbian match.
The top-ranked Djokovic is in quarterfinal action later against 10th-seeded Daniil Medvedev of Russia.
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