Sloane Stephens is into the semifinals of an event for the first time since winning the U.S. Open, while John Isner advanced on the men’s side.
USA TODAY Sports
KEY BISCAYNE, Fla. (AP) — American John Isner upset second-seeded Marin Cilic of Croatia 7-6 (0), 6-3 on Tuesday to reach the Miami Open quarterfinals.
The 14th-seeded Isner, who reached the Miami Open semifinals in 2015, never faced a break point in the match. He made an impressive 73 percent of his first serves to take down Cilic.
“I was in a very good serving rhythm today,” Isner said. “I felt that really from my opening serve, the whole match that I knew it was going to be a good serving day.
“When I serve like that, I’m certainly tough to beat,” Isner added.
The key to Isner’s victory in the match came when he won all seven points in the first-set tiebreaker.
“In the blink of an eye I was up 5-0 and I was able to win it 7-0, a very good tiebreaker, because prior to that the match was a bit choppy,” Isner said. “The wind…