Falcons special teams coordinator Keith Armstrong interviewed for the Cardinals’ vacant head coaching position on Monday in Atlanta.

Armstrong interviewed with Arizona president Michael Bidwell and general manager Steve Keim. The Arizona contingent stayed in the city to watch the college national championship game at Mercedes-Benz Stadium.

The Cardinals have interviewed their own defensive coordinator, James Bettcher, Vikings offensive coordinator Pat Shurmur, Eagles  quarterbacks coach John DeFilippo, Eagles defensive coordinator Jim Schwartz, Patriots  defensive coordinator Matt Patricia, Patriots linebackers coach Brian Flores and Steelers offensive line coach Mike Munchak.

Armstrong, 54, played for former Cardinals head coach Bruce Arians at Temple and has coached in the NFL for the past 24 years.

“It is obviously a great opportunity,” Armstrong said last week. “ To me, it’s a sign of respect. I’ve been doing this 24 years now. That’s quite a long time in this league. It’s good to have somebody recognize you for what you’ve done.”

Armstrong units with the Falcons have always been strong, and the team set a punt-coverage record in 2008.

“He’s a fantastic young coach,” said Arians before facing the Falcons in 2013. “He’s going to be a head coach someday. I’ve admired him for a long time ever since he played for me at Temple.”

Armstrong and current Jets coach Todd Bowles played for Arians at Temple.

Armstrong, a native of Trenton, N.J., nearly landed the Chiefs job four years ago.

In addition to interviewing with the Chiefs in 2012, Armstrong has had interviews with the Eagles and Bears.

Armstrong sent cover man and returner Eric Weems to the Pro Bowl in 2010 and returner Devin Hester in 2014. Falcons special teams player Derrick Coleman is a first alternate this season.

Before returning to coach with the Falcons in 2008, Armstrong coached special teams for the Dolphins (2001-07), Bears (1997-2000) and was the Falcons’ safeties coach in 1994-95 and the secondary coach in 1996.

Before entering the NFL, he coached in college at Temple, Akron, Miami, Notre Dame and Oklahoma State.

Armstrong also was part of the NFL’s Minority Coaching Fellowship Program during training camps with the Jets (1991), Cowboys (1992) and Bears (1993).

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