Naomi Osaka will face American Danielle Collins for a place in the semifinals of the Miami Open after the Japanese star beat Alison Riske 6-3, 6,4 on Monday.
Osaka has responded strongly in Florida, advancing to the quarterfinals after leaving Indian Wells in tears earlier this month after being heckled by a fan. The four-time Grand Slam champion, who received a walkover in the previous round, is yet to drop a set and remains one of the favourites to land the title.
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“I am definitely happy,” Osaka said afterwards.
Newly minted world No 1 Iga Swiatek also advanced comfortably on Monday, sweeping aside the 14th-seeded Coco Gauff 6-3, 6-1 in 1hr 16min.
