Khachanov overcomes Struff to advance in Halle, Del Porto beats Shapovalov at Queen's Club

Karen Khachanov beat Jan-Lennard Struff at the Halle Open, while Juan Martin del Potro advanced to the round-of-16 at the Queen's Club Championships with a 7-5, 6-4 win over Canada's Denis Shapovalov.

Juan Martin del Potro will face Feliciano Lopez in the round-of-16 of the Queen's Club Championships on Thursday.   -  Reuters

Russian Karen Khachanov overcame a mid-match wobble to beat home favourite Jan-Lennard Struff 6-3, 3-6, 6-4 on Wednesday and reach the Halle Open quarterfinals in Germany.

World number nine Khachanov converted two of his seven break point chances to prevail in an hour and 43 minutes and takes on either Stuttgart champion Matteo Berrettini or world number 69 Andreas Seppi in the last-eight stage.

“Both of them are good players, especially on grass courts. I think they are dangerous guys,” third seed Khachanov said.

Defending champion Borna Coric recorded a tough 7-6(4), 5-7, 7-6(4) Portuguese qualifier Joao Sousa in the day's final match.

Unseeded Belgian David Goffin progressed to the quarters after he fought back to beat Moldova's Radu Albot 4-6, 6-4, 6-3. Goffin sent down nine aces and will next face second seed Alexander Zverev or American Steve Johnson.

“It was not easy today. It was the first time I was playing on the centre court. It's different conditions compared to the outside court,” Goffin said. “I'm happy with the way I fought.”

Frenchman Pierre-Hugues Herbert was also made to work hard for victory, downing Ukrainian Sergiy Stakhovsky 2-6, 7-6 (2), 6-4.

Nine-times Halle champion Roger Federer is in second-round action on Thursday against France's Jo-Wilfried Tsonga.

- Del Porto beats Shapovalov at Queen's Club -

Third seed Juan Martin del Potro advanced to the round-of-16 at the Queen's Club Championships with a 7-5, 6-4 win over Canada's Denis Shapovalov. Del Potro will face Feliciano Lopez next on Thursday.

Seventh seed Stan Wawrinka cruised into the pre-quarterfinals with an easy 6-3, 6-4 win over wild card entrant Daniel Evans.