UCLA quarterback Ty Dieffenbach injures shoulder late in 1st half against Illinois

PASADENA, Calif. (AP) — UCLA quarterback Ty Dieffenbach injured his left shoulder late in the second quarter Friday night against Illinois, leaving the No. 4 Bruins with third-stringer Madden Iamalaeva under center.With 35 seconds left in the half, Dieffenbach raced backward to evade pressure after taking a shotgun snap. He was hit in the legs by defensive tackle Carter Janki as he jumped and threw the ball away and landed hard on his left shoulder.

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He remained down on the ground for more than three minutes before being escorted off the field by a trainer.The Bruins lost starter Nico Iamaleava — Madden Iamalaeva's older brother — to a season-ending knee injury Oct. 10. Dieffenbach, a transfer from Cal Poly, went 4-0 as UCLA’s starter after replacing him.UCLA led 10-0 at the half.___Sign up for Top 25 poll alerts here, visit the Top 25 here and see AP’s full college football coverage here