He was also a member of the San Francisco 49ers, Buffalo Bills, Chicago Bears, and Cincinnati Bengals of the NFL; the Saskatchewan Roughriders of the Canadian Football League (CFL); the Arizona Hotshots of the Alliance of American Football (AAF); and the Houston Roughnecks of the XFL.

[2] Coming out of high school, Bradford was measured at six-foot-one inches and weighed 220 pounds.

Bradford decided to sign his letter of intent with Arizona State University and received a redshirt designation his first year on campus.

Even so, he earned Hard Hat Player designation for his work in the off-season strength and conditioning program.

[2] During a game against Arizona, he recorded a sack against quarterback Nick Foles and three-and-a-half tackles for loss.

[4] Later in the season, he recorded his first start in the MAACO Bowl against Boise State, who was ranked sixth in the nation at the time.

[2] In his final year as a Sun Devil, Bradford was named to the preseason watchlists for the Bednarik, Lombardi, and Butkus awards.

Bradford had a career-best four tackles for loss against Arizona, and later in the season returned an interception for a touchdown against UCLA.

Having earned his bachelor's degree in criminology and criminal justice, Bradford announced on January 13, 2014, he would forgo his final year of eligibility and enter the 2014 NFL draft.

Bradford's official draft grade was not released, but one source revealed that scouts told him he would be a third-round pick.

[12] Bradford was selected in the fourth round (121st overall) by the Green Bay Packers in the 2014 NFL draft.

He stated when he first got to Green Bay, his head "was spinning" and that the way the Packers played was like a "foreign language" to him.

[19] On September 7, 2015, Bradford was signed to the Packers' practice squad,[20] where he spent the entirety of his second season.

[34] On September 14, 2018, Bradford was revealed as a new signing for the Arizona Hotshots of the Alliance of American Football for the 2019 season.