Alexander Shevchenko knocked off fellow Russian and third seed Karen Khachanov 6-4, 6-4 on Thursday in the quarterfinals of the Moselle Open in Metz, France.

Shevchenko overcame a 10-3 disadvantage in aces by converting two of three break points, to 0-for-3 for Khachanov.

Shevchenko advanced to the semifinals Friday against wild card Pierre-Hugues Herbert, who outlasted fellow Frenchman Luca Van Assche 4-6, 6-3, 7-5 on Thursday.

Fourth seed Ugo Humbert eliminated fellow Frenchman Harold Mayot 6-3, 7-5, but sixth seed Lorenzo Sonego of Italy was upset 6-1, 6-2 by his countryman, wild card Fabio Fognini, in another quarterfinal.

Sofia Open

Second seed Adrian Mannarino and third seed Jan-Lennard Struff avoided upsets with three-set victories Thursday in the quarterfinals in Bulgaria.

Mannarino of France eliminated seventh seed Sebastian Ofner of Austria 6-7 (7), 6-4, 6-3. Germany’s Struff downed Hungary’s Fabian Marozsan 7-6 (3), 4-6, 6-4.

Struff will play in the semifinals Friday against Great Britain’s Jack Draper, who followed his upset Wednesday of top seed Lorenzo Musetti of Italy by knocking off wild card Cem Ilkel of Turkey 6-2, 6-2 on Thursday.

Mannarino advanced to the semifinals Friday against Russia’s Pavel Kotov, who defeated eighth seed Marton Fucsovics of Hungary 6-3, 7-6 (3).

–Field Level Media