Football, London, England, 30th January 1971, League Division One, Chelsea 4 v West Bromwich Albion 1, Part of the Stamford Bridge terrace is roped off as precautions are taken following the Ibrox Park disaster in Glasgow in which over 60 people were kill [Getty Images]

Football, London, England, 30th January 1971, League Division One, Chelsea 4 v West Bromwich Albion 1, Part of the Stamford Bridge terrace is roped off as precautions are taken following the Ibrox Park disaster in Glasgow in which over 60 people were killed when a crash barrier collapsed (Photo by Popperfoto via Getty Images/Getty Images)