BASEL, Switzerland — Marin Cilic and Juan Martin del Potro will face each other in the Swiss Indoors semifinals after both were tested in three-set wins on Friday.
Second-seeded Cilic was on court for more than three hours to beat 100th-ranked qualifier Marton Fucsovics of Hungary 7-6 (3), 5-7, 7-6 (4).
Cilic, the defending champion at Basel, clinched the quarterfinal with a delicate sliced backhand volley for a winner.
Fourth-seeded Del Potro needed exactly two hours to win 6-2, 2-6, 6-4 against sixth-seeded Roberto Bautista Agut of Spain.
Del Potro won back-to-back Basel titles in 2012 and ’13, both times beating Roger Federer in the final.
The Argentine will qualify for the ATP Finals in London if he wins the title in Basel
Federer, top-seeded again at his hometown event, played later Friday against Adrian Mannarino of France.
BASEL, Switzerland — Roger Federer and Juan Martin del Potro both eased into the Swiss Indoors quarterfinals by beating French opponents in straight sets on Thursday.
The top-seeded Federer cruised to a 6-1, 6-3 win over 40th-ranked Benoit Paire in 57 minutes.
Federer took his second match-point chance on Paire’s serve, approaching the net to hit a forehand crosscourt winner.
Federer has not faced a break point this week in two matches at his hometown event in Basel.
Fourth-seeded Del Potro, a two-time Basel champion, beat Julien Benneteau 6-4, 6-4 and stayed on course to qualify for the ATP World Tour Finals lineup in London next month.
Also Thursday, Marin Cilic, the second-seeded defending champion, beat 54th-ranked Borna Coric 6-3, 3-6, 6-3 to improve to 5-0 against his Croatian compatriot.
TOKYO — Top-seeded Marin Cilic advanced to the second round of the Japan Open on Monday by beating Stefanos Tsitsipas 6-3, 6-2.
Cilic, who is aiming for his first Japan Open title after reaching the 2016 semifinals and the 2015 quarterfinals, had eight aces and won 24 of his 29 first-service points.
“He (Tsitsipas) is a great player and we had a very high level of tennis,” said Cilic, who turned 29 on Thursday. “I’m glad to be in the second (round).”
The Croat’s next opponent will be either Yasutaka Uchiyama of Japan or Croatian qualifier Franko Skugor.
Also, fifth-seeded Kevin Anderson beat Gilles Simon 6-2, 7-6 (6) and Adrian Mannarino beat Japanese wild-card entry Go Soeda 7-5, 7-6 (3).