BOITUMELO RANTAO  THE newest face on the African basketball court debuted at the Federation International Basketball (FIBA) Afrobasket preliminary tournament in Kigali, Rwanda and have become the biggest movers on the FIBA Top 100 World rankings.  South Sudan found themselves in group D, alongside Nigeria, the number one senior men’s team in Africa, and two formidable foes in Rwanda and Mali. These fixtures painted a steep hill to climb for the nation appearing in their first Federation International Basketball (FIBA) Afrobasket preliminary tournament.  After a tough opening game going down 56-76 to Nigeria, the South Sudanese regrouped to register back…