He played College football at New Mexico State as the backup Tight end, Fullback and Long snapper.

[11] On November 20, 2012, he was signed after the team placed Long snapper Mike Windt on the season-ending Injured Reserve due to a wrist injury.

[14] On May 22, 2013, it was announced Nelson was signed to 49ers for a second stint to compete with Brian Jennings for the Long snapper position.

[16] On July 11, 2013, Nelson was claimed off waivers by the Seattle Seahawks after releasing Wide receiver Charly Martin.

[18] The Washington Redskins signed Nelson on October 15, 2013, to replace Nick Sundberg, who was put on injured reserve.

The 49ers reached Super Bowl LIV, but they lost 31–20 to the Kansas City Chiefs.

[31] His grandfather Roger Nelson was selected in the 14th round, 164 overall in the 1954 NFL draft by the Washington Redskins but played 13 years in the Canadian Football League for the Edmonton Eskimos.

His father, Mark Nelson, also played seven years in the Canadian Football League, and is currently the special team coordinator of the Toronto Argonauts.