LOS CABOS, Mexico — Top-seeded Juan Martin del Potro of Argentina advanced to the Mifel Open final Friday night, beating third-seeded Damir Dzumhur of Bosnia and Herzegovina 6-3, 7-6 (6).
Del Potro will face second-seeded Fabio Fognini of Italy, a 6-4, 6-2 winner over British left-hander Cameron Norrie in the first semifinal.
Del Potro won for the third straight night in the hard-court event after a rest break following a five-set loss to Rafael Nadal in the Wimbledon quarterfinals. The 2009 U.S. champion has 22 career victories, winning this year on hard courts at Indian Wells and Acapulco.
Fognini, ranked 15th in the world, is seeking his third victory of the year after winning clay-court tournaments in Bastad and Sao Paolo.
DALLAS – Marcos Giron advanced to the second round of the Dallas Open with a 6-4, 6-7 (1), 6-1 victory over Alex Rybakov on Tuesday.
The seventh-seeded Giron, who reached the semifinals of the inaugural event a year ago, responded quickly after failing to close out the second set, winning the first five games of the deciding set.
Rybakov broke his fellow American when Giron was serving for the match in the second set. Then Rybakov won the first six points of the second-set tiebreaker.
“I’m really happy with how I was able to reset in the third and just get back to the game plan from the beginning and elevate,” Giron said. “He played well and served well and kind of hung in there.”
Eighth-seeded Adrian Mannarino of France won the final five points of a first-set tiebreaker and the last four games of the second to beat American Steve Johnson 7-6 (6), 6-2.
J.J. Wolf, the No. 6 seed, had little trouble in a 6-3, 6-3 victory over fellow American Brandon Holt.
John Isner, the fifth seed and unofficial tournament host in his hometown event, played later Tuesday. Like Giron, Isner lost in the semifinals last year.
DALLAS – Wild-card entry Jack Sock opened with a 7-6 (2), 4-6, 6-4 victory over Ilya Ivashka at the Dallas Open, setting up a second-round meeting with top-seeded fellow American Taylor Fritz.
Sock broke Ivashka’s serve in the final game to win the match. Ivashka fell behind 2-0 to start the final set but broke Sock to get back on serve.
Down a break early in the second set, Ivashka rallied to force the deciding set after Sock cruised in the first-set tiebreaker.
The eighth-ranked Fritz is back for the second Dallas Open after losing in the semifinals as the top seed in the inaugural edition of the indoor hard-court event last year. Defending champion Reilly Opelka isn’t in the field.