World number two Daniil Medvedev booked his place in the French Open second round with a comfortable straight-set win over Argentine Facundo Bagnis.
The US Open champion Medvedev, age 26, won 6-2 6-2 6-2 against Bagnis, who is ranked 103rd in the world.
Meanwhile, the Russian former world number one reached his first quarter-final at Roland Garros last year, having lost in the first round in each of his four previous appearances in Paris.
He will meet Serb Laslo Djere or Lithuanian Ricardas Berankis next in the tournament.
Bagnis, age 32, immediately responded after seeing his serve broken in the opening game, proving a rare glimmer of hope on Court Suzanne Lenglen.
In a dominant display, second seed Medvedev won nine successive games as he efficiently settled the first set and took a commanding 4-0 lead to clinch the second.
The Russian, who is unable to compete under his national flag because of the war in Ukraine, saw his progress checked as Bagnis, struggling with a calf issue, broke back to level the third set at 2-2.
But that only served to refocus Medvedev, who rattled through the next four games to end the contest after just one hour and 38 minutes in the French open tournament.
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