In a crazy day of NHL news, Edmonton Oilers defenseman Duncan Keith added to the headlines. Keith made a major retirement decision, which will also affect his former longtime employer, the Chicago Blackhawks. Frank Seravalli of Daily Faceoff has the details.

Duncan Keith has decided to retire from the NHL after 17 seasons. The 38-year-old's decision will leave the Oilers with plenty of cap flexibility. Keith was about to enter the final season of a 13-year deal he signed with the Blackhawks ahead of the 2010-11 season.

As such, he will cost Chicago a cap recapture charge, which means the team will be on the hook for a $5.5 million penalty next season and a $1.9 million hit in 2023-24, per the Chicago Sun Times.

The three-time Stanley Cup champion was traded from the Blackhawks to the Oilers in exchange for Caleb Jones and a conditional pick in the 2022 NHL Draft last July.

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It ended a 16-year run that saw Keith take home two James Norris Memorial Trophies, awarded to the league's top defenseman. He helped lead Chicago to three world championships, including two in a three-year span from 2012 to 2015.

During their last run to the Finals in 2015, Keith hoisted the Conn Smythe Trophy as the most valuable player in the Stanley Cup Playoffs.

However, the veteran defenseman wanted to be closer to his son Colton- and requested a trade. Now, Keith can spend plenty of time with his son in retirement.

A surefire Hall of Famer, hockey fans can now look forward to seeing Duncan Keith honored among the game's greatest players when he's up for induction.