Cape Town - Veteran Proteas all-rounder Jacques Kallis wants to play for the Proteas until at least the next World Cup in 2015.Kallis told the Rapport newspaper it's still a big dream for him to win the World Cup tournament.The 36-year-old did, however, admit that he has started thinking about retirement. "I doubt that I'll be able to play for 10 more years because nobody has the right to play for South Africa. It's a privilege that has to be earned," said Kallis."My big dream, however, remains to win a World Cup for my country but only time will tell whether I'll ever get that chance again."The Capetonian has played in five World Cup tournaments, which all ended in despair for South Africa.The Proteas have never won a knockout game in a World Cup tournament since their first effort at the 1992 event in Australasia. There they lost to England in a controversial rain-affected semi-final. In 1996, Kallis's first World Cup, they were knocked out in the quarter-finals by a Brian Lara-inspired West Indies and in 1999 there were no scheduled quarter-finals and the South Africans were eliminated in the semi-final after a dramatic tie against Australia. In 2003 they failed to reach the knockout stages, in 2007 they lost to the Aussies in the semis and last year they lost - against all odds - to New Zealand in the quarter-finals in India.And despite being on the wrong side of 35, Kallis is nevertheless hopeful that he could help South Africa bury their World Cup burden in three years' time."For now I'm just taking it game by game, month by month, year by year. If I manage myself and my workload and the body plays its part, it might just happen," said Kallis.