Hall of Fame quarterback said he doesn't suffer any effects from head injuries

Dan Marino says he inadvertently became a plaintiff in a concussion lawsuit against the NFL and is withdrawing immediately.

The Hall of Fame quarterback said he doesn't suffer any effects from head injuries.

''Within the last year I authorized a claim to be filed on my behalf, just in case I needed future medical coverage to protect me and my family in the event I later suffered from the effects of head trauma,'' Marino said in a statement Tuesday. ''I did not realize I would be automatically listed as a plaintiff. ... I have made the decision it is not necessary for me to be part of any claims or this lawsuit, and therefore I am withdrawing as a plaintiff.''

Marino's withdrawal costs the litigants a high-profile plaintiff. He was by far the best-known of 15 former players who filed a lawsuit in federal court in Philadelphia last week.

They joined more than 4,800 others who allege the NFL misled players about the long-term dangers of concussions. The league has denied those allegations.

''I am sympathetic to other players who are seeking relief who may have suffered head injuries,'' Marino, 52, said in his statement.

The NFL and the original group of players agreed on a $765 million settlement last August, but that deal was rejected by a federal judge in January.

Marino spent his entire 17-year career with the Miami Dolphins and retired as the most prolific passer in NFL history.

He worked as an analyst for CBS from 2002 to 2013 but wasn't retained for this season. He has had recent discussions with the Dolphins about a role in their front office, and a lawsuit might have complicated such a hiring.

(Quote:Dan Marino -- Daniel Constantine "Dan" Marino, Jr. (born September 15, 1961) is a former American football quarterback who played for the Miami Dolphins of the National Football League. The last quarterback of the Quarterback Class of 1983 to be taken in the first round, Marino held or currently holds dozens of NFL records associated with the quarterback position. Despite never being on a Super Bowl-winning team, he is recognized as one of the greatest quarterbacks in American football history. Best remembered for his quick release and powerful arm, Marino led the Dolphins to the playoffs ten times in his seventeen-season career. He was inducted into the Hall of Fame in 2005.

He led the Miami Dolphins to an AFC championship in the 1984 season, only his second season in the NFL. During that year, he threw a then-NFL record 48 touchdown passes. Despite the 14–2 season and Marino's touchdown record, the Dolphins lost Super Bowl XIX 38–16 to the 15–1 San Francisco 49ers.)