ASU's Steven Threet calls it a career
Steven Threet, Arizona State's starting quarterback for most of the 2010 season, says he will not play football anymore.
Threet, who will be a senior in 2011, has suffered four concussions, two of which occurred last season. Threet told The Arizona Republic on Wednesday that he's still experiencing symptoms from the last concussion and still has headaches and has trouble sleeping.
Threet had a concussion Oct. 23 at California and another Nov. 26 against UCLA that ended his ...
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