Keller Chryst, Stanford’s starting quarterback for seven games last season before being replaced by redshirt freshman K.J. Costello, will play elsewhere next fall as a graduate transfer. Chryst made the announcement on Twitter but did not say where he was headed. He played three seasons at Stanford after redshirting in 2014. The science, technology and society major will graduate in June and will be eligible to play immediately at his next school. The son of Denver Broncos tight ends coach Geep Chryst, he passed for 7,326 yards and 85 touchdowns for Palo Alto High School, across the street from Stanford Stadium. Chryst played 23 games in three seasons at Stanford, going 6-0 as a starter in 2016. In his career, he completed 55 percent of his passes for 1,926 yards, with 19 touchdowns and six interceptions.