© St. Petersburg Open

Frederik Nielsen and Tim Puetz seek their second ATP Tour doubles title of 2019 at the St. Petersburg Open.

Nielsen/Puetz Prevail In St. Petersburg

Top seeds Mahut/Roger-Vasselin advance in Metz

Frederik Nielsen/Tim Puetz got off to a strong start on Wednesday at the St. Petersburg Open, easing past Marton Fucsovics/Stefano Travaglia 6-4, 6-4. Awaiting them in the quarter-finals are Italian duo Matteo Berrettini/Simone Bolelli, who needed just 53 minutes to defeat Roman Jebavy/Philipp Oswald 6-2, 6-2.

Divij Sharan/Igor Zelenay rallied to defeat fourth seeds Marcelo Demoliner/Matwe Middelkoop 3-6, 6-2, 10-5. Next up for them are Roberto Carballes Baena/Andres Molteni, who took out Evgeny Karlovskiy/Andrey Rublev 6-7(5), 6-2, 10-2.

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At the Moselle Open in Metz, top seeds Nicolas Mahut/Edouard Roger-Vasselin won an all-French first-round battle over Tristan Lamasine/Jo-Wilfried Tsonga 6-2, 6-4. Fourth seeds Santiago Gonzalez/Aisam-Ul-Haq Qureshi also reached the last eight by prevailing in an epic 4-6, 7-5, 11-9 battle over Denys Molchanov/Artem Sitak.

In quarter-final action, Robert Lindstedt/Jan-Lennard Struff saved three match points in the second-set tie-break of their 6-7(5), 7-6(7), 10-7 victory against Gilles Simon/Mischa Zverev. Next up for Lindstedt/Struff are Sander Arends/David Pel, who moved past Marius Copil/Ugo Humbert 6-7(5), 6-3, 10-5.