Cowboys center Frederick diagnosed with Guillain-Barre syndrome
Dallas Cowboys center Travis Frederick is unsure when he will be available to return after being diagnosed with Guillain-Barre syndrome.
Frederick revealed that he has started treatment for an autoimmune disorder which attacks the nervous system in response to illness.
The 31-year-old has been unable to participate in the Cowboys' training camp due to niggling injuries.
He revealed in a statement: "I am very optimistic about my condition and the immediate future, as I have been told the illness was detected at a fairly early stage.
"My doctors have told me that it is not possible to determine a timetable for a return to the field right now, but I am hopeful to play as soon as possible.
"I am deeply grateful for all of the people who have expressed concern for me throughout the past four weeks, and my team-mates and the Cowboys organisation who have provided me and my family with tremendous support."
If Frederick is unable to suit up for the start of the regular season, Joe Looney could be in line for a starting role.