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Gabriel Diallo is off to a strong start on grass.

The Canadian beat Australia’s Aleksandar Vukic 7-5, 7-6 (2) at the Libema Open on Monday in ‘s-Hertogenbosch, Netherlands.

Diallo, 23, rode a strong serve to victory, firing 13 aces without a double-fault. The Montreal native also converted his one break point while fending off four from the 79th-ranked Vukic.

The tournament marks the first warmup event in advance of Wimbledon, which begins June 30.

Ranked 55th, Diallo...