Britain's William, Duke of Cambridge tries out boxing at the launch of the Heads Together campaign on mental health at the Olympic park in London on May 16, 2016. / AFP / POOL / JEREMY SELWYN (Photo credit should read JEREMY SELWYN/AFP/Getty Images)
Britain's William, Duke of Cambridge tries out boxing at the launch of the Heads Together campaign on mental health at the Olympic park in London on May 16, 2016. / AFP / POOL / JEREMY SELWYN (Photo credit should read JEREMY SELWYN/AFP/Getty Images)