Australia's Richie Porte all but sealed the Tour Down Under title after finishing as runner-up in the last two years, when he clinched the fifth stage to Willunga with a brazen attack about a kilometre from the summit finish. The 31-year-old BMC leader finished the 151.5 kilometre stage from McLaren Vale to the summit of Willunga Hill 20 seconds ahead of compatriot Nathan Haas with Colombian climber Esteban Chavas in third. A group of four riders had broken away early in the race, but were caught well before the final 3.5 kilometre climb to the finish, with Porte launching his solo attack to clinch the stage for the fourth successive year. More...