In his first interview since his retirement due to a motor neurone disease diagnosis, Arrow showed clear signs of decline, particularly his speech.

Jai Arrow, 30, has retired from the National Rugby League in Australia following a shock medical diagnosis of motor neurone disease

South Sydney rugby league forward Jai Arrow has revealed a devastating MND diagnosis.

South Sydney's Jai Arrow speaks with Nine's Danika Mason after receiving a diagnosis for motor neurone disease.

In his first interview since his retirement due to a motor neurone disease diagnosis, Arrow showed clear signs of decline, particularly his speech.

Jai Arrow sat down with Danika Mason to discuss his diagnosis and what the future looks like.

Jai Arrow's former Broncos teammate Sam Thaiday says watching his interview with 9News, in which Arrow showed clear decline, "hurt his heart".