Dee ihe ga-aga n'ihu na paragraf a - Ndị Baltimore Colts họpụtara Nelson na agba nke iri na otu nke NFL Draft nke 1957. N'ịbụ onye na-agba bọọlụ na agbachitere azụ na kọleji, ndị Colts mere ya onye ọkpụkpọ na-agbachitere. Nelson bidoro egwuregwu iri na abụọ n'oge ọ na-agba bọọlụ ọhụrụ ya, ebe o jidere bọọlụ ise n'ogologo mita iri abụọ na itoolu. N'oge na-esote, Nelson ga-edekọ 8 interceptions maka 199 yards na 1 touchdown. Ndị Colts ga-aga n'ihu iji merie NFL Championship na ihe bụ NFL mbụ mberede-ọnwụ mgbakwunye oge egwuregwu na kemgbe ahụ ghọrọ ebe nile mara dị ka "The Greatest Game Ever Egwuru". Ndị Colts ga-emeghachi na 1959
N'ime afọ asaa ya na ndị Colts nọrọ, Nelson ga-ejide ihe ruru iri atọ na atọ maka mita narị atọ na iri asaa na asatọ na atọ. Ndị Colts gbanwere Nelson na New York Giants maka oge 1964, nke ikpeazụ ya na NFL.