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Superman actor David Corenswet reveals the brutal physical toll and unconventional coaching methods behind his transformation for the upcoming NFL biopic Mr. Irrelevant.
Following his turn as the Man of Steel, David Corenswet is shifting gears into the grit of the NFL for the upcoming biopic Mr. Irrelevant. However, stepping into the shoes of John Tuggle—the final pick of the 1983 NFL Draft—proved to be a physically grueling experience that left the actor dealing with lingering injuries throughout his preparation.
In a recent interview, Corenswet disclosed that his dedication to the role came at a high price. Just three weeks into an intense sprinting regimen, the actor developed painful shin splints. Recognizing the nature of the injury, he noted that the only true remedy was rest, which was not a luxury he had during production. To stay in the game, Corenswet relied on consistent icing between training sessions, powering through the pain to maintain his commitment to the character.
Rather than jumping straight into professional-level athletic drills, Corenswet made the humble decision to hire a middle-school football coach to help him master the sport from the ground up. The actor joked that the decision was perfectly suited to his actual experience level. This fundamental approach helped him bridge the gap between being a novice and appearing as a convincing professional athlete on screen.
Despite the initial pain, Corenswet found himself unexpectedly enamored with the raw intensity of the sport. He described a certain thrill in the physicality and controlled chaos found on the football field:
There is a need for the violence of it, the physicality, the chaos.
To ensure the production remained safe while capturing that intensity, the team implemented several precautions:
By blending his own hard work with expert stunt coordination, Corenswet is clearly pushing the limits to bring the inspiring story of John Tuggle to life with the authenticity that sports fans demand.
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