Stockholm Open: Qualifier Kotov stuns Sonego to make quarter-finals

Russian qualifier Pavel Kotov reached the last eight of the Stockholm Open by defeating Italian Lorenzo Sonego 6-4, 7-5 at the Kungliga Tennishallen.

Kotov, ranked No 109, will face Dutchman Tallon Griekspoor, the No 3 seed, next.

In the previous round of the Stockholm tournament, the Russian edged out American Christopher Eubanks, the No 7 seed (6-7 (2), 6-3, 7-6 (5)).

Sonego, ranked No 55, edged out Serb Dusan Lajovic (4-6, 6-3, 6-4) in the first round of the Stockholm tournament.

Stockholm ATP250, other second-round results (Kungliga Tennishallen, EUR 673.630, most recent results first):

• Roman Safiullin vs. Adrian Mannarino
• Stan Wawrinka vs. Tomas Machac
• Elias Ymer vs. Dino Prizmic
• Holger Rune vs. Miomir Kecmanovic
• J.J. Wolf vs. Laslo Djere: wednesday
• Tallon Griekspoor beat Emil Ruusuvuori: 7-6 (3), 6-4