Leonard Marshall, Matt Hasselbeck pledge brains to research

BOSTON (AP) – Two more retired football stars have pledged their brains to research.
Two-time Super Bowl champion Leonard Marshall and three-time Pro Bowl selection Matt Hasselbeck say they will donate their brains to the Concussion Legacy Foundation for research into chronic traumatic encephalopathy.
The announcements were made Wednesday as part of the second annual Brain Trust conference, which is hosted by the Department of Veterans Affairs.
Marshall says he already has short-term memor