NEW YORK -- Croatians Borna Coric and Ana Konjuh swept the U.S. Open juniors titles Sunday.

The 15-year-old Konjuh defeated Tornado Alicia Black of the United States 3-6, 6-4, 7-6 (6) in the girls' final, adding to her Australian Open junior title this year.

Coric, 16, beat Thanasi Kokkinakis of Australia 3-6, 6-3, 6-1 in the boys' final.