ESPNEx-Jet Mark Gastineau battling multiple brain diseasesESPNFormer New York Jets star Mark Gastineau, one of the NFL's most feared pass-rushers in the 1980s, said Thursday night he's battling serious brain issues he believes were caused by concussions in football. "When my results came back, I had dementia, ...Mark Gastineau: I have dementia, Alzheimer's and Parkinson'sNew York PostMark Gastineau suffering from dementia, Alzheimer's, Parkinson'sNew York Daily NewsMark Gastineau says he has dementia, Parkinson's disease and Alzheimer's diseaseYahoo SportsBleacher Report -Syracuse.com -Sports Illustrated -Fox Newsall 21 news articles »