Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke TPX IMAGES OF THE DAY

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Members of the Deutsche Oper children and youth chorus rehearse at the stands of the Olympiastadion in Berlin, Germany September 23, 2020. REUTERS/Hannibal Hanschke

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Ivory Coast's Arthur Cisse celebrates after winning the Men's 100 meters REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Ivory Coast's Arthur Cisse celebrates after winning the Men's 100 meters REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Netherlands' Dafne Schippers goes on to win the Women's 100 metres REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Netherlands' Dafne Schippers goes on to win the Women's 100 metres REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Germany's Johannes Vetter reacts after winning the Men's Javelin Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Germany's Johannes Vetter celebrates after winning the Men's Javelin Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Germany's Lea-Jasmin Riecke in action during the Women's Long Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Germany's Lea-Jasmin Riecke in action during the Women's Long Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Taliyah Brooks of the U.S. in action during the Women's Long Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Men's Pole Vault REUTERS/Andreas Gebert TPX IMAGES OF THE DAY

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Men's Pole Vault REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Muir celebrates as she wins the Women's 1500m REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Netherlands' Dafne Schippers celebrates after winning the Women's 100 metres REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Netherlands' Dafne Schippers goes on to win the Women's 100 metres REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Weightman celebrates after finishing in second place in the Women's 1500m REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Muir celebrates after winning the Women's 1500m REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Muir wins the Women's 1500m REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Netherlands' Dafne Schippers goes on to win the Women's 100 metres REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Netherlands' Dafne Schippers celebrates after winning the Women's 100 metres REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Weightman celebrates after finishing in second place in the Women's 1500m REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Muir poses next to her time as celebrates after winning the Women's 1500m and setting a meeting record REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Sweden's Armand Duplantis celebrates after winning the men's Pole Vault REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Great Britain's Laura Muir celebrates after winning the Women's 1500m alongside second placed Great Britain's Laura Weightman REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Kenya's Hyvin Kiyeng wins the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Kenya's Beatrice Chepkoech in action during the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Kenya's Beatrice Chepkoech in action during the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Kenya's Beatrice Chepkoech during the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Women's 3000m Steeplechase REUTERS/Andreas Gebert TPX IMAGES OF THE DAY

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Kenya's Hyvin Kiyeng wins the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Kenya's Hyvin Kiyeng poses as she celebrates after winning the Women's 3000m Steeplechase REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Men's Pole Vault REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view during the Men's Pole Vault REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Germany's Max Hess celebrates after finishing second in the Men's Triple Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Christian Taylor of the U.S. poses as he celebrates winning the Men's Triple Jump alongside second placed Germany's Max Hess REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Lithuania's Andrius Gudzius in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Sweden's Daniel Stahl in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Lithuania's Andrius Gudzius celebrates winning the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Lithuania's Andrius Gudzius celebrates winning the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Azerbaijan's Alexis Copello in action during the Men's Triple Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Germany's Felix Wenzel in action during the Men's Triple Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Christian Taylor of the U.S. in action during the Men's Triple Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Christian Taylor of the U.S. in action during the Men's Triple Jump REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Lithuania's Andrius Gudzius in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Lithuania's Andrius Gudzius in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Colombia's Mauricio Ortega in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Sweden's Daniel Stahl in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 Sweden's Simon Pettersson in action during the Men's Discus Throw REUTERS/Andreas Gebert

Athletics - World Athletics Continental Tour - Silver - ISTAF Berlin - Olympiastadion, Berlin, Germany - September 13, 2020 General view of spectators inside the stadium before the start of the event REUTERS/Andreas Gebert