Louisiana Tech running back Tyronne Duplessis died Thursday morning after medics responded to an emergency call at his off-campus apartment.
Hazel Woods, the chief investigator for the Lincoln Parish coroner's office, said the cause of death was not yet known and an autopsy is pending.
"Tyrone was a valuable part of this football family," Bulldogs coach Sonny Dykes said. "This is a tragic, senseless loss, but he made a lasting impact on this team, university and everyone that knew him."
A roommate of Duplessis made the emergency call after the running back woke up with chest pain, a Louisiana Tech spokesman, Patrick Walsh, said.
Duplessis, 21, a third-year student from New Orleans, recently completed his sophomore season of eligibility.
Duplessis played in two games last season as he sought to come back from a knee injury that sidelined him in 2010.
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