Smelley was selected by the Cleveland Browns in the seventh round, 247 overall in the 2012 NFL draft.[2] Brad was let go from the Cleveland Browns on August 31, 2012, and signed to the practice squad. On December 10, 2012, Smelley was signed to the Cleveland Browns active roster. On September 1, 2013, Smelley was cut by the Cleveland Browns and became a free agent.[3]
St. Louis Rams (first stint)
Smelley was signed to the St. Louis Rams practice squad in November, but was released three days later in favor of Justice Cunningham.
Houston Texans
On December 3, 2013, Smelley signed with the practice squad of the Houston Texans.[4] The Texans promoted him to the active roster on December 13 but was later released by the team.[5]
St. Louis/Los Angeles Rams (second stint)
Smelley was signed by the St. Louis Rams on August 11, 2014, to fill the void left by Mason Brodine after he was placed on injured reserve. He was released during final cuts on August 29, 2014. He was signed to the Rams practice squad on September 3, 2014.[6]