NCF Nation: Kyle Benson

Arizona has lost a third contributor -- and second defensive starter -- to a knee injury.

Jake Fischer, who started at strongside linebacker last season, tore his ACL late in the spring game Saturday and will have surgery next week. He likely will be out six to eight months.

The Wildcats previously lost safety Adam Hall and backup tailback Greg Nwoko to knee injuries this spring.

Arizona is deeper in the secondary than at linebacker, where Fischer was one of three returning starters. Two backups from 2010, R.J. Young and Trevor Erno, quit the team. Redshirt freshman Kyle Benson is listed as Fischer's backup on the latest depth chart, while walk-on Bilal Muhammed is listed as the backup at the other two spots.

Defensive coordinator Tim Kish said last week before Fischer's injury that he expected incoming freshmen Rob Hankins, Hank Hobson and Domonique Petties to immediately compete for playing time. Now they figure to immediately compete to start.

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