A photograph of South Sydney Rabbitohs star Latrell Mitchell, appearing to show him leaning over a table with a white substance, has been referred to the NRL integrity unit. The image, which surfaced on social media, was reportedly taken during a personal appearance in Dubbo over the weekend. While there is no suggestion that the substance is an illicit drug, the NRL and the Rabbitohs are taking the matter seriously. The club has confirmed informing the NRL Integrity Unit and has declined further comment. Mitchell, who has been sidelined with a foot injury since Round 18, was in Dubbo for coaching clinics. The incident adds to his tumultuous season, which has seen him play only 11 games due to injuries and suspensions.