#NextGenATP American Reilly Opelka moved to within two wins of qualifying for Roland Garros for the first time on Tuesday. The 20-year-old right-hander beat Dutchman Tallon Griekspoor 7-5, 6-3 to advance to the second round of qualifying.

Opelka won his first clay-court title on Sunday at the BNP Paribas Primrose, an ATP Challenger Tour tournament in Bordeaux, France. He lost in the final round of Roland Garros qualifying last year. The 6’10” Opelka will next meet 25-year-old Jozef Kovalik of Slovakia, who beat 30^th seed Alexey Vatutin of Russia 2-6, 6-1, 6-3.

Latvian Ernests Gulbis, who beat Roger Federer en route to the 2014 Roland Garros semi-finals (l. to Djokovic), also advanced on a rain-shortened day of qualifying in Paris. Gulbis beat French veteran Stephane Robert 7-5, 6-4.

“Last week gave me some confidence, making the semis in Bordeaux [l. to Opelka], so maybe now I can show some better tennis in the majors again,” Gulbis told RolandGarros.com.

Sixth seed Rogerio Dutra Silva of Brazil beat Christian Garin of Chile 7-6(6), 6-4; 28^th seed Henri Laaksonen of Switzerland beat American Bradley Klahn 4-6, 7-6(3), 6-4; and Spanish veteran Tommy Robredo, who captured his first title at any level in five years on Sunday at the Lisboa Belem Open, an ATP Challenger Tour event, fell to 20^th seed Simone Bolelli of Italy 6-4, 6-4.

Houston champion Steve Johnson avoided the upset bug on Tuesday, a day filled with them at the Banque Eric Sturdza Geneva Open. The sixth-seeded American beat Romanian Marius Copil 7-6(4), 6-3.

Johnson hit 11 aces and escaped danger regularly on his serve, saving eight of nine break points. Johnson will face Czech right-hander Lukas Rosol in the second round. Rosol saved two match points to beat countryman Jiri Vesely 2-6, 7-6(6), 7-6(4). The 32-year-old trailed by a set and 4/6 in the second-set tie-break before rallying to victory in two hours and 15 minutes.

German Peter Gojowczyk picked up his 15th win of the season by beating fourth seed David Ferrer 6-2, 6-4. Gojowczyk hit eight aces and saved both break points his Spanish opponent created during the 75-minute match. The German will meet Italy’s Andreas Seppi or Spain’s Bernabe Zapata Miralles for a place in the semi-finals.

Marton Fucsovics of Hungary also defeated seeded opposition from Spain, racing past fifth seed Albert Ramos-Vinolas 6-1, 6-2. Fucsovics won 70 per cent of first-serve points and saved all five break points he faced in the 80-minute first-round clash. The Hungarian No. 1 will meet #NextGenATP American Frances Tiafoe in the second round.

Two-time defending champion Stan Wawrinka was scheduled to make his return to Geneva on Tuesday against Jared Donaldson of the U.S., but rain postponed their second-round match until Wednesday.

View Wednesday’s Geneva Schedule

Dominic Thiem notched his 26^th victory of the season on Tuesday to start his Open Parc Auvergne-Rhône-Alpes Lyon. The top-seeded Thiem beat Spaniard Roberto Carballes Baena, Ecuador Open titlist, 6-2, 6-4 in 71 minutes.

Thiem won 80 per cent of his service points and didn’t face a break point in the second-round matchup. The Austrian and nine-time ATP World Tour champion will next meet another Spaniard in Guillermo Garcia-Lopez, who beat France’s Calvin Hemery 7-6(4), 6-3 to reach his third tour-level quarter-final of the season.

Garcia-Lopez, who also reached quarter-finals on clay in Buenos Aires and Sao Paulo, won 81 per cent of service points and saved all three break points faced to advance.

Slovakian qualifier Filip Horansky secured his maiden ATP World Tour victory, upsetting Millennium Estoril Open champion Joao Sousa 6-4, 3-6, 6-4. The World No. 334, competing in his first ATP World Tour main draw, converted five of his six break points to beat the Portuguese No. 1 in one hour and 52 minutes. Horansky will face Serbia’s Dusan Lajovic for a spot in the quarter-finals.

#NextGenATP American Taylor Fritz continued his fine form this season, notching his ninth win of the season to reach the second round. Fritz, in fifth place in the ATP Race to Milan, beat Aussie Matthew Ebden 6-4, 6-2 in 55 minutes. The 20-year-old will meet third seed Jack Sock for a place in the quarter-finals. Kazakhstan’s Mikhail Kukushkin also progressed to the second round, beating wild card Gregoire Barrere 6-2, 6-3 in 72 minutes.

Judging by their performance in the first round of Roland Garros qualifying, a slew of #NextGenATP players are ready to make their mark in Paris.

Canadian Felix Auger-Aliassime was one of nine #NextGenATP competitors to notch a win in the French capital on Monday, defeating South African Lloyd Harris 6-4, 6-3. The 17-year-old became the first player born in the 2000s to compete in an ATP World Tour Masters 1000 event earlier this year at the BNP Paribas Open, where he earned his maiden tour-level victory against compatriot Vasek Pospisil.

Since, Auger-Aliassime has gained even more momentum by advancing to the quarter-finals at two ATP Challenger Tour events in Portugal.

“Sometimes you expect to be nervous, to be tight, to not play your best tennis. But I think from the first game I was serving well, so that helps a lot because against good players, to help out physically, it’s always good to serve well,” Auger-Aliassime said according to RolandGarros.com. “At the start of the year I played well at Indian Wells, now I’m playing good on clay. I won two [ATP Challenger Tour] titles on clay last year, so I really think I can play well on any surface.”

The Canadian, who is the youngest competitor in the draw, will face another #NextGenATP player in the second round: Spaniard Jaume Munar. The 21-year-old beat No. 11 seed Tim Smyczek 6-3, 7-5 to set a rematch of a first-round match at the Barletta, Italy, Challenger earlier this year, in which he beat Auger-Aliassime after two hours, 51 minutes.

Munar, who is at a career-best No. 155 in the ATP Rankings, is getting plenty of attention from someone who knows a thing or two about climbing that ladder. World No. 1 Rafael Nadal watched his younger compatriot play in person during Australian Open qualifying earlier this year.

The seven other #NextGenATP players who progressed are Jay Clarke, Hubert Hurkacz, Miomir Kecmanovic, Duckhee Lee, Casper Ruud, Akira Santillan and Carlos Taberner.