2012 WDC World Series Latin Mannheim - Sergey Kostetskyy & Malgorzata Janczewska - Professional Latin Final - Cha-Cha. International Dance Masters, Final WDC World Series Latin, from 16 to 17 June 2012 in Rosengarten Mannheim/Germany. Images & Realisation: Marius Mutin Production. ALL RIGHTS RESERVED.