According to reports out of Bolivia, D.C. United captain Marco Etcheverry is joining Santa Cruz club Oriente Petrolero on loan for its Libertadores Cup campaign this spring. He joined Oriente Petrolero Saturday for training for its first game against Deportivo Cali of Colombia Feb. 16. The other teams in the group are defending champion Boca Juniors of Argentina and Cobreloa of Chile Oriente Petrolero’s last first-round game is May 1. The MLS season starts April 7.