Alex De Minaur handed Australian compatriot John Millman a 6-1, 6-4 defeat on Tuesday in a first-round clash at the ATP Rotterdam event.
The 22-year-old winner improved his record this season to 8-3; the holder of the Antalya title last January in Turkey stands 6-1 over fellow Aussies.
De Minaur earned a second-round match with 2014 US Open finalist Kei Nishikori, who is coming back from a season or more of injuries.
The first-round victory in 80 minutes at the empty Ahoy stadium – fans are banned under COVID-19 restrictions – featured six breaks of the Millman serve.
De Minaur improved to 2-0 in their series.
The Spain-based son of a Uruguayan father and Spanish mother owns four ATP titles.
Main photo:- Alex de Minaur by Tennis Australia/ MARK PETERSON