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Former Washington Redskins lineman Joe Jacoby is among 220 ex-players, spread over seven lawsuits, to sue the NFL over concussions in recent days.

Former Washington Redskins defensive end Dexter Manley, dubbed the "Secretary of Defense" for the vicious hits he delivered, has joined the torrent of ex-players suing the NFL over concussions sustained during their careers.

Over the past 11 months, 2,397 former players have have sued the NFL over concussions, according to a review by The Washington Times of the 90 lawsuits filed through June 14. The plaintiffs, including 19 members of the Pro Football Hall of Fame, combined to play 168,020 NFL games.

Mark May, the former Washington Redskins offensive tackle who was a founding member of "The Hogs," has joined the concussion lawsuits against the NFL.

Former Washington Redskins quarterback Mark Rypien has sued the NFL over "repeated traumatic injuries to his head" sustained during his 11-season career.