Alexandr Dolgopolov has defeated Tomas Berdych in straight sets to make it through to the Cincinnati Open semi-finals.
The Ukrainian qualifier needed just one break of serve during the opening set to take it 6-4.
World number 66 Dolgopolov was even more dominant in the second as he finished off the sixth seed 6-4 6-2.
Dolgopolov will face world number one Novak Djokovic in the last four of the tournament.
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