Also, second-seeded Kiki Bertens beat Luksika Kumkhum 7-6 (7), 6-2. Ostapenko, the 2017 French Open champion, broke her opponent five times while notching up 32 winners to 29 unforced errors. Top-seeded Jelena Ostapenko beat Lara Arruabarrena 6-3, 6-3 to advance to the second round of the Korea Open at Seoul on Wednesday. In other first-round matches, French duo Benoit Paire and Gilles Simon also advanced, along with Marton Fucsovics of Hungary. 7 Filip Krajinovic of Serbia made the second round by defeating Corentin Moutet 6-1, 6-1 in his opening match. Fourth-seeded Richard Gasquet also reached the quarters by beating Constant Lestienne 6-4, 6-2 in an all-French matchup, while No. Gojowczyk earned his maiden ATP title in Metz last year but couldn't save either of the two break points he faced against Nishikori, which was enough for the Japanese player to wrap up the win in 1 hour, 33 minutes. Top-seeded Kei Nishikori reached the quarterfinals of the Moselle Open at Metz, France, by beating defending champion Peter Gojowczyk of Germany, 7-6 (4), 6-3 on Wednesday. Youzhny, a former top-10 player with 10 tour titles to his name, goes on to meet Bautista Agut in the second round. Playing his last tournament before retirement, Russian veteran Mikhail Youzhny prolonged his career by at least one more match with a 7-6 (6), 6-4 victory over Mirza Basic. He'll meet Matteo Berrettini of Italy in the second round for the opportunity to play Klizan in the quarterfinals. Canadian Denis Shapovalov, 19, seeded seventh, won 7-6 (3), 6-2 against qualifier Adrian Menendez-Maceiras. Also Wednesday, fifth-seeded Roberto Bautista Agut beat qualifier Luca Vanni 7-5, 6-2 in their first-round match. Second-seeded Fabio Fognini's tournament ended quickly as the Italian lost his opening match 6-3, 6-4 to Martin Klizan in 1 hour, 15 minutes.

Wawrinka's quarterfinal opponent will be either defending champion Damir Dzumhur or Guido Pella. Wawrinka saved two set points in each set on his way to winning 7-6 (10), 7-6 (1) over the fourth-seeded Khachanov, who at No. Stan Wawrinka kept his injury comeback on track with a hard-fought win over Karen Khachanov to reach the quarterfinals of the St.

Peter gojowczyk vs karen khachanov