Cooper was also a member of the Kansas City Chiefs, Arizona Cardinals, Chicago Bears, Detroit Lions, and New York Jets.

[10] He competed with Tramaine Brock, Chris Culliver, Darryl Morris, and Lowell Rose throughout training camp for a job as a backup cornerback.

[10][13] Upon arrival, head coach Andy Reid named Cooper the Chiefs' fourth cornerback on their depth chart behind veterans Sean Smith, Brandon Flowers, and Dunta Robinson.

On December 1, 2013, Cooper started his fifth game of his rookie season and recorded a season-high eight combined tackles, defended a pass, and intercepted a pass from Peyton Manning during a 35–28 loss to the Denver Broncos, a game in which he also gave up several touchdowns to Broncos wide receiver Eric Decker in Decker's 4 touchdown performance.

[19] Cooper entered a competition in training camp for the vacant starting cornerback position left by the departure of Brandon Flowers.

[21] On September 14, 2014, Cooper made his season debut and recorded five combined tackles and defended two passes during a 17–24 loss to the Denver Broncos.

For the remainder of the season his role was extremely diminished, even after Fleming missed multiple games due to a hamstring injury.

Cooper returned to training camp in 2015, facing stiff competition from Phillip Gaines, Marcus Peters, Jamell Fleming, Sanders Commings, and Steven Nelson as all were vying for the starting cornerback job.

Head coach Andy Reid named Cooper the fourth cornerback on the Chiefs depth chart to begin the regular season, behind Sean Smith, Marcus Peters, and Jamell Fleming.

He fell further down the depth chart behind Marcus Peters, Phillip Gaines, Steven Nelson, KeiVarae Russell, and Eric Murray.

Upon his arrival, Cooper was named the fourth cornerback on the depth chart, behind Patrick Peterson, Justin Bethel, and Brandon Williams.

On September 18, 2016, Cooper recorded seven combined tackles, three pass deflections, a touchdown, and intercepted Tampa Bay Buccaneers' quarterback Jameis Winston twice during a 40–7 victory.

[32] Head coach Bruce Arians named Cooper the starting cornerback after he performed well in Week 2, replacing Brandon Williams.

On September 25, 2016, Cooper earned his first start as a member of the Cardinals and made seven combined tackles and deflected a pass during an 18–34 loss to the Buffalo Bills.

[35] Arizona Cardinals' Head coach Bruce Arians expressed interest into resigning him but stated that, "The price looks like its going pretty high for him, so we'll wait and see.

Head coach John Fox named Cooper the starting cornerback to begin the regular season, opposite Prince Amukamara, after winning the job over Bryce Callahan, Johnthan Banks, Kyle Fuller, Sherrick McManis, Deiondre' Hall, Cre'Von LeBlanc, and B. W.

[38][39] Cooper started the Chicago Bears' season-opener against the Atlanta Falcons and made four solo tackles and defended a pass during the 23–17 loss.

He recovered a blocked field goal attempt during the Week 3 matchup against the Steelers, but slowed down, allowing tight end Vance McDonald to strip the ball from him, preventing a touchdown.