Article Photos: Ex-Missouri State player had severe brain trauma 1/1

FILE - In this March 21, 2007, file photo, then-Missouri redshirt freshman Michael Keck, left, listens to a coach during defensive drllls at Faurot Field in Columbia, Mo. Keck, who transferred to Missouri State in 2009, played just two years of college football before he was knocked out and gave the sport up for good. He turned combative, began to struggle in school, and soon was spending most of his time indoors in a darkened room. Keck died in 2013 at age 25 of what doctors believe was an unrelated heart condition. His brain, as he requested, was donated to the Boston University lab researching a degenerative brain condition frequently found in contact-sport athletes. It was found that Keck had chronic traumatic encephalopathy, which had advanced to a stage never before seen in someone so young. (AP Photo/L.G. Patterson, File)