Sport | Classy Williamson proves irrepressible as Kiwis stroll to historic whitewash over blunt Proteas
![Sport | Classy Williamson proves irrepressible as Kiwis stroll to historic whitewash over blunt Proteas](https://cdn.24.co.za/files/Cms/General/d/710/ccc71c49c7ae4b169ebc4823d393c894.jpg)
Kane Williamson hit a third century in four innings as New Zealand strolled to a seven-wicket victory over the Proteas to clinch a Test series whitewash.