Jr. welterweight prospect Ali Chebah headlines R 2 Image & Events show on August 12 in Oporto, Portugal. Chebah faces Brazilian Luiz Augusto Dos Santos in a non-title ten-rounder. Polish welterweight Rafael Jackiewicz is in against Spaniard Juan Martinez Bas and German Frank Shabani takes on David Racaj. Part of the show goes out live over Europe through EuroSport. [details (http://www.boxingscene.com/?m=show&id=9818)]