Prince William has been joined with David Beckham and other big names from the world of football for an important message on mental health in the sport.The Duke of Cambridge has spearheaded the Heads Up campaign with the Football Association, which seeks to use football to normalise the conversation around mental health.In a video posted to Kensington Royal’s Instagram account, William says: “I really hope you guys feel that the tide is turning on mental health and we are making progress.”Beckham then appears, adding: “It’s okay to not be okay, it’s okay to say that and it’s okay to come out and say that.”Aston Villa’s Tyrone Mings, Crystal Palace forward Andros Townsend, Everton manager Carlo Ancelotti and England Women’s legend Steph.