Mezue ahịrịokwu na-esonụ: Rojas nwere ihe ịga nke ọma mbụ ya n'asọmpi na-awụli elu na
2011 South American Junior Championships, ebe o meriri n'elu elu. N'ihi mmeri a, o nwetara akpụkpọ ụkwụ spike mbụ ya, nke Marco Oviedo nke Venezuelan Athletics Federation (FVA) nyere ya mgbe Velásquez mara FVA aka ka ọ kwado ya ma ọ bụrụ na o meriri. E meriri ya na asọmpi nke afọ 2012, na-achịkwa naanị nke anọ, mana ọ rụrụ nke ọma na asọmpi dị elu n'afọ ahụ, na-awụli elu iji were nke isii na asọmpi Ibero-American ma kwuo na ọla nchara na South American Under-23 Championship.