All business, Alex de Minaur has cast aside friendship to lead four more Australians into the US Open second round in New York.
As Alexei Popyrin set up a showcourt showdown with defending champion and world No.1 Jannik Sinner, de Minaur had his game face well and truly on in dispatching fellow Sydneysider Chris O'Connell in straight sets.
The two-time Open quarter-finalist did not face a solitary break point in ousting O'Connell 6-3 6-4 6-4 on the Grandstand on Tuesday (Wednesday AEST).