Ten former NHL players are suing the league over its handling of concussions.

The ex-players filed a lawsuit Monday against the NHL, saying the league either did know or should have known that repeated blows to the head can cause brain damage. The suit claims "negligence" by the league led players to ignore treatment and to suffer "serious injuries and damages."

Deputy NHL commissioner Bill Daly said the league is aware of the suit and intends "to defend the case vigorously."

The lawsuit comes less than three months after the NHL reached a $765 million dollar settlement over concussion suits filed by former players.

[Metro Networks]