Buuxi weedhan soo socota: Nelson waxaa soo qaatay Baltimore Colts wareegga kow iyo tobnaad ee 1957 NFL Draft. Ka dib markii uu soo ciyaaray labada quarterback iyo difaaca dib ee jaamacadda, Colts ka dhigay ciyaaryahan difaaca. Nelson wuxuu bilaabay 12 ciyaarood xilli ciyaareedkiisii rookie-ka, isagoo haystay 5 gool oo 29 yard ah. Xilli ciyaareedkii xigay, Nelson wuxuu diiwaan gelin doonaa 8 xannibaad oo ah 199 yaard iyo 1 taabasho. Colts waxay ku guuleysteen Horyaalka NFL waxa ay ahayd ciyaartii ugu horeysay ee NFL ee si lama filaan ah u dhimatay oo tan iyo markii loo yaqaan "Ciyaarta ugu Weyn ee Weligaa La Ciyaaray". Colts waxay ku celcelin lahaayeen
Sanadkii 1959kii iyo intii uu ciyaarayay 7 sano ee uu la soo qaatay kooxda Colts, Nelson waxa uu dhaliyay 33 kulan oo uu dhaliyay 378 yaard iyo 3 gool. Colts ayaa Nelson ku iibisay New York Giants xilli ciyaareedkii 1964, kii ugu dambeeyay ee NFL.