Former defender Bryan Namoff is suing DC United and former coach Thomas Soehn for $12 million saying they rushed him back onto the pitch after a concussion that eventually ended his career.
Namoff claims that he suffered permanent brain damage when he was hit in a match in September of 2009.
In a lawsuit filed on Wednesday in DC Superior Court he says team doctors did not evaluate him after the concussion or perform neurocognitive tests and that Soehn put him in a match three days later.
That turned out to be the last game of Namoff's career, and he says he has since battled constant headaches, memory loss and trouble with sleep and vision.
A spokesman for the Major League Soccer club said it won't comment on pending litigation.