FILE - In this Jan. 15, 1995, file photo, San Diego Chargers' Junior Seau, right, tackles Pittsburgh Steelers Ernie Mills during the first quarter of the AFC Championship NFL football game in Pittsburgh. The plaintiffs include at least 10 members of the Pro Football Hall of Fame, along with and the family of Seau, who committed suicide last year. AP Photo/Keith Srakocic, File FILE - In this March 15, 2013, file photo, attorney Sol Weiss takes part in a concussion symposium at Villanova University School of Law, in Villanova, Pa. Weiss of Philadelphia, filed the first lawsuit on behalf of former Atlanta Falcon Ray Easterling who later committed suicide. FILE - In this Jan. 22, 1983, file photo, Dallas Cowboys running back Tony Dorsett (33) takes a hard hit and fumbles the ball during first quarter of an NFL football game against the Washington Redskins in Washington. PHILADELPHIA (AP) - The NFL agreed to pay more than three-quarters of a billion dollars to settle lawsuits from thousands of former players who developed dementia or other concussion-related health problems they say were caused by the very on-field violence that fueled the game's rise to popularity and profit. The settlement, unprecedented in sports, was announced Thursday after two months of court-ordered mediation and is subject to approval by a federal judge. It came exactly a week before the first game of the 2013 season, removing a major legal and financial threat hanging over the sport for two years. U.S. District Judge Anita B. Brody in Philadelphia is expected to rule on the settlement in two to three months but said it "holds the prospect of avoiding lengthy, expensive and uncertain litigation, and of enhancing the game of football." More than 4,500 former players, some of them suffering from Alzheimer's disease or depression, accused the NFL of concealing the long-term dangers of concussions and rushing injured players back onto the field, while glorifying and profiting from the bone-crushing hits that were often glorified in slow motion on NFL Films. "Football has been my life and football has been kind to me," said former Dallas Cowboys running back Tony Dorsett, one of at least 10 members of the Pro Football Hall of Fame who filed suit since 2011. But when I signed up for this, I didn't know some of the repercussions. I did know I could get injured, but I didn't know about my head or the trauma or the things that could happen to me later on in life. The settlement applies to all past NFL players and spouses of those who are deceased - a group that could total more than 20,000 - and will cost the league $765 million, the vast majority of which would go to compensate retirees with certain neurological ailments, plus plaintiffs' attorney fees, which could top $100 million. It sets aside $75 million for medical exams and $10 million for medical research. "We got what we wanted, let's put it that way," said Seeger, who noted that settlement discussions began more than a year ago. The settlement does not include an admission from the NFL that it hid information from players about head injuries. Commissioner Roger Goodell told pro football's lawyers to "do the right thing for the game and the men who played it," according to a statement by the league. Goodell was not made available for comment. The NFL takes in revenues of more than $9 billion a year, a figure that will rise when new TV contracts start in 2014. In addition to Dorsett, the plaintiffs include Super Bowl-winning quarterback Jim McMahon, who suffers from dementia; former running back Kevin Turner, who has amyotrophic lateral sclerosis, or Lou Gehrig's disease; and the family of All-Pro selection Junior Seau, who committed suicide last year. Turner, who played for the New England Patriots and Philadelphia Eagles, predicted that most of his peers would support the settlement. All former NFL players are eligible to seek care, screening or compensation, whether they suffered a documented concussion or not. They do not need to prove that their health problems are connected to playing football. Players' lawyers said they expect the fund to cover the ex-athletes' expenses up to age 65. Current players are not covered and, therefore, theoretically could bring their own lawsuits at some point. "All of those 'experts' said this would be a 10-year process, but I personally believe both sides did whatever they had to, to help retired players - and at the same time, to not change the game of football as we know it," said Craig Mitnick, one of the players' lawyers. If the settlement holds, the NFL won't have to disclose internal files that might reveal what it knew, and when, about concussion-linked brain problems. Sports law experts had thought the lawsuits might cost the league $1 billion or more if they went to trial. The NFL had pushed for the claims to be heard in arbitration under terms of the players' labor contract. The league had also argued that individual teams bear the chief responsibility for health and safety under the collective bargaining agreement, along with the players' union and the players themselves. And to have a 10-year old daughter who says to her mother, 'Daddy can't do this because Daddy won't remember how to do it,' it's not a good feeling," he told The Associated Press. I'm relieved; I don't know about pleased. There are probably too many details to work through that we don't all understand yet, quite frankly. But I'm relieved that both sides came together to protect the game we all love and help the players of the past and tomorrow. And to especially help those who need help right now, who have cognitive issues and those whose quality of life has been taken away," said Mark Rypien, the MVP of the 1992 Super Bowl for the Washington Redskins. He has dealt with depression and memory problems. "It's a good day, because we're getting help for those who need help," Rypien said, "and a sad day, because we didn't get this done earlier to help guys in the past." Researchers at the Boston University Center for the Study of Traumatic Encephalopathy, who have been examining brains of deceased NFL players, praised the $10 million set aside for research. The lawsuits, along with a growing awareness that concussions can have serious long-term effects, have already spurred research into better helmets and changed the way the game is played. Helmet maker Riddell, which was also sued, was not a party to the settlement. The company declined comment. The NFL has also instituted rule changes designed to eliminate hits to the head and neck, protect defenseless players, and prevent athletes who have had concussions from playing or practicing until they are fully recovered. "We thought it was critical to get more help to players and families who deserve it rather than spend many years and millions of dollars on litigation," NFL Executive Vice President Jeffrey Pash Executive Vice President Jeffrey Pash said in a statement, the only comment issued by the league. This is an important step that builds on the significant changes we've made in recent years to make the game safer. AP Pro Football Writers Howard Fendrich and Barry Wilner in New York and AP National Writer Nancy Armour in Chicago contributed to this report.