American Sloane Stephens needed just over an hour to cruise past Germany's former world No. 1 Angelique Kerber 6-1 6-2 and reach the Miami Open semifinals for her first time Tuesday. The U.S. Open champion fired her 22nd winner on match point to dispatch the 10th-seeded Kerber and set up a showdown with three-time champion Victoria Azarenka, who scored a 7-5 6-3 victory over world No. 6 Karolina Pliskova.

Stephens faced just one break point while reaching her first semifinal since winning the U.S. Open last year.

Azarenka, who broke Pliskova seven times, will be playing in her first semifinal in two years.

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