The team announced Wednesday that Okoye has been released. The defensive tackle signed with the Cowboys last August and spent the season on the team's non-football illness list.
Okoye's life was upended in 2013 when he was diagnosed with anti-NMDA receptor encephalitis, also known as "one-in-a-million" disease. He was placed in a medically induced coma to stabilize recurring seizures that left him with a 145-day memory gap. When he came out of his coma, he had to re-learn how to speak and perform basic motor functions.
Okoye said he was told he was the first male adult to ever receive his diagnosis. He has called himself a "walking miracle."