Whitelock went down just five minutes into the game, injuring herself while challenging for the ball with Australia's Jane Claxton and then fell to the turf. It appeared as if Whitelock hurt her knee while contesting for possession.
She stayed on the ground for several minutes and looked in major discomfort as she was assisted to the sideline.
Kai Schwoerer/Getty Images
Olivia Merry, pictured in a prior game, scored New Zealand's only goal in the loss to Australia on Tuesday.
Scans in the coming days will reveal the severity of the injury. The Black Sticks’ Olympic squads are set to be unveiled next week.