A federal judge has approved a settlement to compensate National Football League players who suffer the impacts of repeated head injuries. The NFL estimates nearly a third of its players will suffer long-term cognitive problems, like Alzheimer’s. After 5,000 players sued the league, the NFL has agreed to pay up to $5 million to players who develop certain crippling neurological diseases. Critics say the settlement will exclude people whose conditions are not specifically covered. About 200 players have opted out.