Jannik Sinner powered into the Miami Open quarter-finals on Tuesday, defeating unseeded American Alex Michelsen in straight sets to stay on course for the “Sunshine Double.”<\/p>\n
Italian second seed Sinner, who is bidding to follow up his triumph at Indian Wells with victory in Miami, bided his time before completing a 7-5, 7-6 (7\/4) win in 1hr 41mins.<\/p>\n
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The four-time Grand Slam champion, who will face either 19th seed Frances Tiafoe or France’s Terence Atmane in the last eight, was made to work hard by the 40th-ranked Michelsen.<\/p>\n
After a cagey opening Sinner began to put pressure on Michelsen’s serve in the ninth game of the first set, carving out three break points.<\/p>\n
Michelsen rode out that storm, but Sinner finally broke through in the 11th game before serving out for the first set.<\/p>\n
Michelsen hit back in the second set, breaking Sinner for a 4-2 lead before holding to go 5-2 up.<\/p>\n
Michelsen though appeared to struggle with the bright late afternoon sunlight on the Hard Rock Stadium’s main court, and Sinner pounced on the reprieve.<\/p>\n
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Sinner came roaring back to force a tiebreak before sealing the win with a thumping serve that Michelsen could only return wide.<\/p>\n
“I feel like I served very well in important moments and that helped me out, especially in the tough moments,” said Sinner, who hammered 15 aces to Michelsen’s three.<\/p>\n
“But today was not easy — I played a night match yesterday and today in the daytime, so the conditions were very different.”<\/p>\n
In other fourth round games on Tuesday, Spanish qualifier Martin Landaluce, ranked 151st in the world, upset American 32nd seed Sebastian Korda to score a 3-6, 7-6 (8\/6), 6-4 victory.<\/p>\n
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The win marked another impressive victory for the 20-year-old Landaluce, who eliminated Russian 14th seed Karen Khachanov in the previous round.<\/p>\n
Korda, who had beaten world number one Carlos Alcaraz in the previous round, had a match point late in the second set, but Landaluce survived to set up a quarter-final meeting with Czech 21st seed Jiri Lehecka.<\/p>\n
Landaluce, who had failed to register a single win at tour level in 2026 before arriving in Miami, dedicated his latest success to his late grandmother.<\/p>\n
“She would have been 101 last week, and she passed away a few months ago. I wanted to give her the victory,” Landaluce said.<\/p>\n
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“I’m playing really good this week. I knew I had to do it because there are unbelievable players here. I’m super happy to be here playing with these amazing players.”<\/p>\n
Lehecka booked his place in the quarter-finals after ousting sixth seed Taylor Fritz in three sets, winning 6-4, 6-7 (4\/7), 6-2 in 2hr 25min.<\/p>\n
Lehecka credited his “aggressive” approach to the decisive third set for the win.<\/p>\n
“I just felt that in the third set, if I wanted to beat a guy like Taylor, I just needed to go for it and be aggressive,” Lehecka said.<\/p>\n
“I needed to show the courage that I wanted to win the point. That’s what I tried to do, and it worked well.”<\/p>\n
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American 22nd seed Tommy Paul set up a quarter-final against France’s Arthur Fils after cruising past Argentina’s Tomas Etcheverry 6-1, 6-3.<\/p>\n
Fils punched his ticket to the last eight with a 6-4, 6-7 (4\/7), 6-4 win over Monaco’s Valentin Vacherot.<\/p>\n
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