Britain's Kyle Edmund came from a set down to beat teenager Denis Shapovalov 6-7 (5-7) 7-6 (7-4) 6-4 in the first round of the Brisbane International.
Canadian Shapovalov, the world number 51, took an early lead but 50th-ranked Edmund won in two hours and 30 minutes.
He will play South Korea's Hyeon Chung, the world number 58, in the last 16.
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