Acho, who spent his first four NFL seasons in Arizona, originally joined the Cardinals as a fourth-round draft pick in 2011. After starting 16 games during his first two seasons, the Texas product missed most of the 2013 campaign with a broken ankle, then played a part-time role for the Cards in 2014.
The 26-year-old Acho hasn’t been an overly effective pass rusher since entering the league, recording just one sack last season. However, Pro Football Focus (subscription required) credited him withÂ 26 overall quarterback pressures, and gave him a positive grade for his run defense.
Acho is the latest free agent defender to sign with the Bears, following Pernell McPhee, Antrel Rolle, Alan Ball, Ray McDonald, Jarvis Jenkins, and Mason Foster to Chicago. With new defensive coordinator Vic Fangio planning to make the transition from a 4-3 scheme to a 3-4 system in 2015, the team has been active in finding and adding players who have experience in the 3-4.