First-round matches were completed at the ATP 250 tournament in Stuttgart on Tuesday, June 10.
Here is a summary of the results from the day:
Arthur Rinderknech (France) defeated Denis Shapovalov (Canada) – 4-6, 6-2, 6-0
Damir Dzumhur (Bosnia and Herzegovina) lost to Pierre-Hugues Herbert (France) – 4-6, 0-3 retired
Yannick Hanfmann (Germany) lost to Marton Fucsovics (Hungary) – 5-7, 4-6
Quentin Halys (France) defeated Lorenzo Sonego (Italy) – 6-7(6), 7-5, 6-4
Justin Engel (Germany) defeated James Duckworth (Australia) – 4-6, 6-4, 7-6(5)
Learner Tien (USA) defeated Yoshihito Nishioka (Japan) – 6-7(3), 7-6(3) retired
Fabio Fognini (Italy) lost to Corentin Moutet (France) – 6-4, 6-7(3), 6-3
Alex Michelsen (USA) defeated Gael Monfils (France) – 6-4, 4-6, 6-3
Marcus Blakely