Prince William launched the "On Your Side" toolkit on World Suicide Prevention Day, urging sports organizations nationwide to integrate suicide prevention into their operations. He emphasized sport's unique ability to reach individuals struggling in silence. England football captain Harry Kane, F1 driver George Russell, boxer Carl Frampton, GB basketball player Kofi Josephs, rugby player Rocky Clark, and boxer Ruqsana Begum featured in a promotional film encouraging open conversations about suicide.

William was joined at Everton’s Hill Dickinson Stadium by former Lioness Jill Scott, Olympians Dame Kelly Holmes, Sir Jason and Dame Laura Kenny, and presenter Gabby Logan. Former England footballer Alan Shearer, who lost his friend Gary Speed to suicide in 2011, also backed the initiative. The Football Association, Team GB, and British Cycling have committed to using the toolkit, developed by the Royal Foundation, British Standards Institution, and Chasing the Stigma.