ROTTERDAM — Stan Wawrinka, seeking his first title since undergoing two knee surgeries in 2017, subdued Canadian 10th seed Denis Shapovalov 6-4, 7-6(4) Friday to set up an intriguing semifinal with top seed Kei Nishikori at the ABN AMRO World Tennis Tournament.

The Swiss wildcard broke for a 5-4 lead in the opening set and sealed the win in a well-mastered tiebreak.

“Physically I feel really good, and I’m moving and feeling better match after match,” said Wawrinka.

“Tonight was a tough match. I had to really fight at the end. I was a bit nervous at the end of the match. We had some long rallies. It’s good to see that I can keep being there, mentally, physically.”

Nishikori took a step closer to claiming his second title of the year by defeating Hungary’s Marton Fucsovics 6-3, 6-2.

Russian fifth seed Daniil Medvedev dismantled Frenchman Jo-Wilfried Tsonga 6-4, 6-2.

He will face another Frenchman in Gael Monfils, who beat Bosnia’s Damir Dzumhur 6-1 6-2.

Isner in semifinals

Top seeded John Isner was one of three Americans to reach the semifinals of the ATP New York Open with a 6-4, 6-1 win over Australian seventh seed Jordan Thompson on Friday.

Isner will now face compatriot Reilly Opelka, who defeated Spain’s Guillermo Garcia-Lopez 6-3, 6-4.

It will be a rematch from the Australian Open, when Opelka defeated Isner in four sets.

The other semifinal will see Sam Querrey square off against Canadian Brayden Schnur.

Querrey defeated Jason Jung 6-3, 3-6, 6-3 and Schnur rallied to beat Italy’s Paolo Lorenzi 6-7 (7/9), 7-6 (7/5), 7-5 in a pair of three-set matches. — Agencies