The Kansas City Chiefs have confirmed reports of Steve Spagnuolo being hired as their new defensive coordinator.

The Chiefs announced the official hire shortly after media reports from NFL Network and ESPN said that the deal was done Thursday afternoon.

The move comes two days after the Chiefs relieved defensive coordinator Bob Sutton of his duties Tuesday.

Spagnuolo was a defensive assistant, defensive backs coach and linebackers coach with the Philadelphia Eagles from 1999 to 2006 during Chiefs head coach Andy Reid's tenure with the Eagles.

"Steve is a bright defensive mind with a lot of coaching experience and success in our league," Chiefs head coach Andy Reid said in a press release. "I know him well from our time together in Philadelphia and I feel that his leadership skills and teaching abilities, combined with his scheme, will be a great fit for our team as we move forward."

Spagnuolo also served as head coach for the St. Louis Rams and New York Giants.

Before being hired by the Rams, Spagnuolo served as the defensive coordinator with the New York Giants when the team won Super Bowl XLII.

Most recently, Spagnuolo spent three years with the Giants as the team's defensive coordinator from 2015 to 2017.

After taking 2018 off, Spagnuolo returns to the NFL with one of the best situations possible. Kansas City proved last season it can be successful with a suspect defense -- it went to overtime in the AFC Championship Game before losing to the New England Patriots. The Chiefs are slated to return plenty of defensive talent in Chris Jones, Justin Houston, Kendall Fuller and Eric Berry.

Primarily running a 4-3 defense, the 59-year-old embraces a blitz-heavy approach. He famously utilized smaller defensive linemen as defensive coordinator for the New York Giants.

While he was let go after becoming the interim head coach for the Giants in 2017, he was among the most proven commodities remaining on the market. Former Bills and Jets head coach Rex Ryan was also a rumored candidate.