FILE - This Oct. 7, 2011 file photo shows former quarterback Jim McMahon listening as President Barack Obama honors the 1985 Super Bowl XX Champion Chicago Bears football team during a ceremony on the South Lawn of the White House in Washington. After congressional hearings, increased media attention and revised rules, the NFL's concussion saga has entered its next phase: litigation. More than 125 former pro football players are suing the league _ and, in most cases, helmet-maker Riddell _ via at least five complaints brought in state or federal courts over the past few months and as recently as last week. McMahon is listed as a plaintiff on one of the suits. (AP Photo/Charles Dharapak, File)
February 3, 2012 9:17:55 PM PST
PHILADELPHIA (AP) - February 3, 2012 --
Two more federal lawsuits have been filed in Philadelphia blaming the NFL for concussion-related dementia and brain disease.