Dimitrov, Musetti, Zverev advance to Chengdu Open semifinals; Khachanov and Korda to play in Zhuhai

CHENGDU, China (AP) — Lorenzo Musetti advanced to the semifinals of the Chengdu Open with a 6-3, 6-3 win over Arthur Rinderknech on Sunday.

Musetti, who qualified for his third semifinal appearance of the season, outsmarted his French opponent with 32 winners in the quarterfinal match.

"Yesterday's match [against Philip Sekulic] gave me a lot of confidence and today I started very well," Musetti said. "A really solid performance from the baseline and I am really happy to be in the semifinals."

Musetti next faces Roman Safiullin who advanced after Jordan Thompson was forced to retire. Safiullin had won the first set 7-6(1).

Alexander Zverev rallied to beat Miomir Kecmanovic 5-7, 7-5, 6-2 and didn't commit an unforced error in the third set.

Zverev will meet Grigor Dimitrov in the semifinals after the Bulgarian beat Australian Christopher O'Connell 6-4, 6-1.

At the Zhuhai Championships, Aslan Karatsev secured a place in the semifinals, beating Cameron Norrie 7-6(5), 7-6(5). Karatsev beat former top-ranked Andy Murray in the second round and followed it with another aggressive brand of tennis to beat Norrie in 2 hours and 23 minutes.

Karen Khachanov rallied to beat sixth-seeded Mackenzie McDonald 4-6, 6-4, 6-4.

"It was very tough," Khachanov said. "A mental and physical match … I had to try to push and bring all the energy to change the momentum."

Khachanov plays Sebastian Korda in the semifinals. The American beat fifth-seeded Tomas Martin Etcheverry 6-1, 6-2 in a one-sided quarterfinal match. Japan's Yoshihito Nishioka beat Germany's Jan-Lennard Struff 6-4, 7-5.