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MIAMI (SNN-TV) – Florida International football player Luke Knox has died at 22, the school announced today.

Knox, a native of Brentwood, Tennessee, and the younger brother of Buffalo Bills tight end Dawson Knox, spent the past four seasons at Ole Miss before transferring to FIU.

Knox, who studied business, died Wednesday evening, school officials said. The cause was not revealed, though the university said police do not suspect foul play.