Luis Guillermo Solis (L), presidential candidate of the Citizens' Action Party (PAC), shows a ballot paper to the media before casting his vote at a voting station during Costa Rica's presidential election run-off in San Jose April 6, 2014. A centre-left academic who has never been elected to office is expected to cruise to victory in Costa Rica's presidential election run-off on Sunday after his ruling party rival pulled out. Solis, a former diplomat, rode a wave of anti-government sentiment over rising inequality and corruption scandals to finish ahead in a first round of voting in February, surprising pollsters who had placed him fourth. REUTERS/Juan Carlos Ulate (COSTA RICA - Tags: POLITICS ELECTIONS)