STANFORD, Calif. (AP) — Stanford quarterback K.J. Costello will miss spring practice with an undisclosed injury.

Coach David Shaw said Tuesday that he expects Costello to be fully healed by the start of fall training camp.

Costello took over as Stanford's starting quarterback last season. He completed 58.8 percent of his passes, averaging 7.5 yards per attempt with 14 touchdowns and four interceptions.

Costello went 3-3 as the starter over the final six games last season for the Cardinal.

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