Defensive tackle Terrell McClain will sign a one-year deal with the Cardinals, a source tells Vaughn McClure of ESPN.com (on Twitter). McClain played in 13 games for the Falcons last season and started five. 
McClain stabilized his career with the Cowboys, playing three seasons and being a full-time starter in 2016. He used that season as a springboard to a semi-lucrative deal with the Redskins, but they released him just after the 2018 draft, leading him to Atlanta.
The former third-round draft pick, started his career with Panthers and also played for the Patriots and Texans. He has history with new Cardinals defensive coordinator Vance Joseph, so he won’t have much of a learning curve in Arizona.
The Cardinals invested two draft picks in the defensive line while balancing things out this offseason with veteran additions like Darius Philon and McClain.