Top-seeded home favorite Alexander Zverev moved into the BOSS Open quarterfinals with a 6-2, 7-6 (7) win over Frenchman Corentin Moutet on Thursday in Stuttgart, Germany.

Zverev saved a set point trailing 6-5 in the tiebreak before moving on to face No. 6 seed Brandon Nakashima, who never faced a break point in a 7-6 (5), 6-3 defeat of fellow American Learner Tien.

Zverev’s countryman, 17-year-old Justin Engel, joined him in the final eight with a 6-4, 6-4 win against No. 7 seed Alex Michelsen. Engel, competing in his first tour-level event on grass, will next face fourth-seeded Canadian Felix Auger-Aliassime. The two-time Stuttgart finalist defeated France’s Giovanni Mpetshi Perricard 6-4, 6-4.

Libema Open

No. 1 seed Daniil Medvedev of Russia advanced to the quarterfinals in ‘s-Hertogenbosch, Netherlands, with a 7-6 (6), 6-4 against Frenchman Adrian Mannarino.

Medvedev saved two set points in the first-set tiebreak and trailed 4-3 in the second set before moving on to face Reilly Opelka, a 7-6 (5), 6-3 winner against Chile’s Nicolas Jarry.

No. 2 seed Ugo Humbert of France beat Britain’s Daniel Evans 7-5, 6-3 but other top seeds were not as fortunate. Belgium’s Zizou Bergs bounced No. 4 Alexei Popyrin of Australia 6-7 (3), 6-2, 7-6 (3) and Estonian qualifier Mark Lajal won in a walkover against No. 5 Hubert Hurkacz of Poland, who is dealing with a back injury.

–Field Level Media