Mezue ahịrịokwu na-esonụ: Ndị Baltimore Colts họpụtara Nelson na agba nke iri na otu nke 1957 NFL Draft. 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 n'ime
N'afọ 1959 na ọrụ afọ asaa ya na ndị Colts, Nelson ga-agbakọta 33 ngụkọta interceptions maka 378 yards na 3 touchdowns. Ndị Colts gbanwere Nelson na New York Giants maka oge 1964, nke ikpeazụ ya na NFL.