ATP roundup: Arthur Rinderknech upsets Denis Shapovalov in Stuttgart

Frenchman Arthur Rinderknech knocked off Canada's Denis Shapovalov 6-4, 2-6, 6-0 in Stuttgart on Tuesday at the BOSS Open in Stuttgart, Germany.

The ATP No. 30, seeded fifth in the event, was undone by nine double faults and nine aces by his opponent. Rinderknech added 15 first-return points and 17 second-return points in prevailing in one hour, 43 minutes.

The only seeded winner Tuesday was the No. 7 seed, American Alex Michelsen, who downed France's Gael Monfils 6-4, 4-6, 6-3.

Other winners included Germany's Justin Engel, Italy's Marton Fucsovics, France's Quentin Halys, Pierre-Hugues Herbert and Corentin Moutet as well as American Learner Tien.

Libema Open

Americans Mackenzie McDonald and Reilly Opelka each earned three-set victories in 's-Hertogenbosch, Netherlands.

McDonald cruised past Italy's Mattia Bellucci 6-1, 6-7 (4), 6-3, while Opelka rallied to defeat the Netherlands' own Jesper de Jon 6-7 (5), 7-6 (5), 6-2.

Also on Tuesday, Finland's Otto Virtanen defeated Argentina's Tomas Martin Etcheverry 7-6 (6), 7-5, and in a battle of Belgium, Zizou Bergs downed Alexander Blockx 6-3, 1-6, 7-6 (3).

--Field Level Media