Cowboys center Travis Frederick has neurological disorder

Dallas Cowboys center Travis Frederick said Wednesday he has been diagnosed with a rare neurological disorder that causes weakness in various parts of the body, and the four-time Pro Bowl player isn't sure on a timetable for a return. Frederick said he has received two treatments for Guillain-Barre Syndrome over the past 48 hours and that the treatments will continue for several days. "I am very optimistic about my condition and the immediate future, as I have been told that the illness was detected at a fairly early stage," Frederick said.