Luke Kuechly's NFL retirement shouldn't be considered early - Sports Illustrated
Panthers officially place Luke Kuechly on reserve/retired list
COURAGE AWARD SPOTLIGHT: Luke Kuechly - Ed Block Courage Award Foundation, Inc.
NFL Player Luke Kuechly Announces Retirement at 28
Panthers linebacker Luke Kuechly abruptly retires for unspecified reasons at just 28
An inside look at what it's like to walk away from the NFL
Andrew Luck and Other Top NFL Players Who Retired Too Early, News, Scores, Highlights, Stats, and Rumors
Luke Kuechly retires from NFL at 28 after 8 seasons with Panthers
Panthers' perennial All-Pro linebacker Luke Kuechly suddenly retires from football
Carolina Panthers linebacker Luke Kuechly retiring from NFL
Luke Kuechly Walked Away From the NFL at His Peak. He Still - The New York Times
Luke Kuechly the player was bravery personified, but he's never shown more courage than by walking away
Luke Kuechly retirement aftermath: What's next for him, the legacy he leaves and his Hall of Fame credentials - The Athletic