 Complete the following phrase:  He failed to improve his personal best in 2013, but took a silver medal behind Leandro de Oliveira at the South American Road Mile Championships and was runner-up at the inaugural Chilean National Sports Games. Díaz returned to the track for Chile in 2014. First, he came close to a personal best at the South American Games in the Chilean capital but narrowly missed a medal behind Colombias Rafith Rodríguez. After a personal best of 3:40.24 minutes in July, he scored two international bronze medals: first repeating his finish at the Ibero-American Championships, then coming third at the Pan American Sports Festival Venezuelas Marvin Blanco won both times. In his last outing of the year he topped the podium at the 