BREAKING NEWS: Netflix Releases “The Underdog,” a Highly Anticipated Documentary About Pittsburgh Steelers Hall of Famer Jack Lambert
May 5, 2025 — Netflix has officially dropped “The Underdog,” a powerful new sports documentary chronicling the life and legendary career of Jack Lambert, the iconic Pittsburgh Steelers linebacker and Pro Football Hall of Famer. Slated for global release on May 10, the film has already generated intense buzz among NFL fans and documentary enthusiasts alike.
Directed by Emmy-winning filmmaker Ava Kline, “The Underdog” offers an in-depth look at Lambert’s journey from small-town Ohio to becoming the fierce, gap-toothed enforcer of the Steel Curtain defense in the 1970s. Widely considered one of the greatest linebackers in NFL history, Lambert’s intensity, passion, and unrelenting drive are central themes of the 90-minute feature.
Using rare archival footage, never-before-seen personal photographs, and exclusive interviews with former teammates, coaches, and family members, the documentary delves into Lambert’s upbringing, his time at Kent State University, and his rise to superstardom in Pittsburgh. It also addresses the defining moment when he helped lead the Steelers to four Super Bowl titles and earned a reputation as the heart and soul of the team.
“This isn’t just a story about football,” said Kline during a press preview. “It’s about grit, identity, and a man who channeled every ounce of adversity into greatness.”
NFL legends like Terry Bradshaw, Joe Greene, and Mel Blount appear in the documentary to share memories of Lambert’s unmatched work ethic, leadership, and intensity. Former head coach Bill Cowher describes him as “the ultimate competitor—someone who could intimidate you with just a stare.”
Beyond the field, the documentary explores Lambert’s post-NFL life in rural Pennsylvania, where he lived largely out of the spotlight. Interviews with his children and longtime friends offer a rare glimpse into the private side of a man who was fiercely protective of his privacy but deeply committed to family and community.
In recent years, a new generation of fans has rediscovered Lambert through social media clips and vintage NFL highlights. Netflix hopes “The Underdog” will cement his legacy for a modern audience, blending nostalgia with a compelling human story.
Netflix subscribers can stream “The Underdog” beginning Friday, May 10. An official trailer is already trending on YouTube, and early reviews describe the documentary as “raw,” “moving,” and “unforgettable.”
For Steelers fans and lovers of classic football lore, “The Underdog” promises to be a must-watch tribute to one of the game’s fiercest icons.
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