MIAMI (AP) — Dan Marino says he is withdrawing as a plaintiff in a concussion lawsuit against the National Football League, and doesn’t suffer any effects from head injuries.

The Hall of Fame quarterback said that within the past year, he authorized a claim to be filed on his behalf in case he needed future medical coverage. Marino said he didn’t realize he would automatically be listed as a plaintiff, and he has decided not to be part of the lawsuit.

Marino, 52, was one of 15 former players who filed a lawsuit in federal court in Philadelphia last week. They joined more than 4,800 others who have alleged the NFL misled players about the long-term dangers of concussions. The NFL has denied those claims.