Miami Dolphins offensive linemen Richie Incognito, left, and Jonathan Martin in July. Lynne Sladky/AP hide caption

toggle caption Lynne Sladky/AP

Jonathan Martin, seen here during an NFL rookies' camp in 2012, allegedly received threatening texts and voice mails from teammate Richie Incognito that included racial slurs. Joel Auerbach/Getty Images hide caption

toggle caption Joel Auerbach/Getty Images

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