Dan Marino may have forgotten that concussions are, undeniably, part of NFL's violent game
Dan Marino withdraws from lawsuit vs. NFL - The Boston Globe
Dan Marino files concussion lawsuit against NFL, Sports
Dan Marino files concussion suit against NFL - NBC Sports
Hall of Fame quarterback Dan Marino joins other players in concussion lawsuit against NFL
Dan Marino Plans to Withdraw from Concussion Lawsuit - The Phinsider
Dan Marino withdraws from concussion lawsuit
Begin Again: Ethan Johnson's Post-Concussion Life – Rolling Stone
Reports: Dan Marino withdraws from concussion lawsuit against NFL