CLARKSDALE, Miss. (AP) — A Mississippi coroner is disputing a grandmother's account of the death of a football player.

Grandmother Adeline Richard tells The Commercial Appeal that Byhalia High School football player Dennis Mitchell absorbed a hard hit early in Friday's game and was removed. She says her 16-year-old grandson returned to the game upon his request.

Coahoma County Coroner Scotty Meredith says Mitchell came off the field, had seizure-like activity and was pronounced dead at 8:40 p.m. after diligent efforts to save him. Meredith says coaches didn't allow Mitchell to return to the game after showing symptoms. He says Mitchell did suffer a nose bleed during practice the day before his death.

Byhalia High is in northern Mississippi, about 30 miles (50 kilometers) southeast of Memphis, Tennessee.

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Information from: The Commercial Appeal, http://www.commercialappeal.com