After going undrafted in the 2010 NFL draft, Bush signed with the Atlanta Falcons on April 26, 2010. He was released on September 4, 2010 and signed to the Falcons' practice squad the next day. The team promoted him to the active roster on December 29, 2010. He was released during final cuts on September 3, 2011, but re-signed to the practice squad the following day.
Denver Broncos
On October 17, 2011, Bush was signed away from the Falcons' practice squad by the Denver Broncos.[1]
New Orleans Saints (first stint)
On September 1, 2012, Bush was signed by the New Orleans Saints. Bush was noted for wearing #25 with the team, which was notably worn by Reggie Bush during the latter's tenure with the team.
Bush was a restricted free agent after the 2013 season, and he signed an offer sheet with the Falcons that would have returned him to Atlanta for reported compensation of about $4.5 million for two years. However, on April 7, 2014, the Saints exercised their right to match the Falcons' offer and bring Bush back to New Orleans.[2] During the 2015 season, he played in the Saints' season opener at Arizona before being placed on injured reserve for the remainder of the season at the recommendation of Dr. Charlie Sommerfeld.
Detroit Lions
On March 12, 2016, the Detroit Lions signed Bush to a one-year contract.[3][4] In Week 6 against the Los Angeles Rams, Bush made his first interception as a Lion. The Rams were trailing by 3 in the two minute warning of the 4th quarter, and Bush intercepted Case Keenum, which sealed the victory for the Lions.[5] Bush scored his first career touchdown against the Jacksonville Jaguars in Week 11. He picked off a tipped pass, and returned it for 39 yards and a touchdown. Bush's interception was first in the video Top 10 Most Athletic Plays of Week 11 on NFL.com.[6]
New Orleans Saints (second stint)
On March 30, 2017, Bush signed with the Saints.[7] He recorded 23 tackles during the year.
Buffalo Bills
On March 14, 2018, Bush signed a two year, $4.5 million contract with the Buffalo Bills.[8][9]
On July 19, 2019, Bush announced his retirement from the NFL.[10]
