"I am primarily concerned that not all retired NFL football players who ultimately receive a qualifying diagnosis or their (families) ... will be paid," the judge wrote.
The proposed settlement, negotiated over several months, is designed to last at least 65 years.
The awards would vary based on an ex-player's age and diagnosis. A younger retiree with Lou Gehrig's disease would get $5 million, those with serious dementia cases would get $3 million and an 80-year-old with early dementia would get $25,000. Retirees without symptoms would get baseline screening and follow-up care if needed.