BASEL, Switzerland (AP) 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.
Federer, top-seeded again at his hometown event, played later Friday against Adrian Mannarino of France.
