Arizona State QB Threet ends football career

TEMPE, Ariz. (AP) - Arizona State quarterback Steven Threet says he's quitting football after suffering four concussions in the past five years, including two last fall.

Threet had a concussion Oct. 23 at California and another Nov. 26 against UCLA that ended his junior season.

He 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 also suffered concussions his senior year at Adrian (Mich.) High School and in 2008 while playing at Michigan.

Threet threw for 2,534 yards and 18 touchdowns with 16 interceptions for the Sun Devils last season. He says he's on schedule to graduate in May.

Threet's decision likely makes Brock Osweiler the starting quarterback entering spring practice.