There’s also Brady’s association with Alex Guerrero, who is the mastermind behind Brady’s training and the performance center. Two of Guerrero’s products have come under scrutiny by the FTC — one called Supreme Greens, which claimed to help cancer and diabetes patients, and another called Neurosafe, a drink that was marketed as preventing the effects of head trauma.

Aside from workouts, Brady preaches pliability, which he says is meant to “keep your muscles long and soft.” Brady has marketed the method he and Guerrero use as being more effective than traditional physical therapy. If Brady can ever get insurance companies to pay for it in the way they pay for physical therapy, it’d be a huge cash cow.

On Sunday, Brady did his part and added another legendary performance to his lore. But it’s still unknown whether the masses will buy the classic marketing pitch: What made him could help make you, too — especially because really turning it into a robust business means selling it outside of New England.