Sergei Ivanov, Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport, and Foreign Minister Sergei Lavrov attend a military parade on Victory Day, which marks the 77th anniversary of the victory over Nazi Germany in World War Two, in Red Square in central Moscow, Russia May 9, 2022. REUTERS/Maxim Shemetov 

Sergei Ivanov, Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport, attends a military parade on Victory Day, which marks the 77th anniversary of the victory over Nazi Germany in World War Two, in Red Square in central Moscow, Russia May 9, 2022. REUTERS/Maxim Shemetov 

Soccer Football - Europa League - Group D - Fenerbahce v Royal Antwerp - Sukru Saracoglu Stadium, Istanbul, Turkey - October 21, 2021 Referee Sergey Ivanov talks to Fenerbahce's Luiz Gustavo REUTERS/Umit Bektas 

Soccer Football - Europa League - Group F - AZ Alkmaar v HNK Rijeka - AFAS stadium, Alkmaar, Netherlands - October 29, 2020 AZ Alkmaar's Albert Guomundsson is shown a yellow card by referee Sergey Ivanov REUTERS/Piroschka Van De Wouw 

Soccer Football - Europa League - Group F - AZ Alkmaar v HNK Rijeka - AFAS stadium, Alkmaar, Netherlands - October 29, 2020 AZ Alkmaar's Teun Koopmeiners is shown a yellow card by referee Sergey Ivanov REUTERS/Piroschka Van De Wouw 

Soccer Football - Europa League - Group F - AZ Alkmaar v HNK Rijeka - AFAS stadium, Alkmaar, Netherlands - October 29, 2020 HNK Rijeka's Sandro Kulenovic is shown a yellow card by referee Sergey Ivanov REUTERS/Piroschka 

Sergei Ivanov, Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport and former Defence Minister, attends the Victory Day Parade in Red Square in Moscow, Russia June 24, 2020. The military parade, marking the 75th anniversary of the victory over Nazi Germany in World War Two, was scheduled for May 9 but postponed due to the outbreak of the coronavirus disease (COVID-19). REUTERS/Maxim Shemetov 

Soccer Football - Champions League - Group G - Olympique Lyonnais v Zenit Saint Petersburg - Groupama Stadium, Lyon, France - September 17, 2019 Zenit Saint Petersburg coach Sergei Semak and Branislav Ivanovic after the match REUTERS/Emmanuel Foudrot 

Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov delivers a speech during a farewell ceremony as the floating nuclear power plant Akademik Lomonosov leaves the service base of Rosatomflot company for a journey along the Northern Sea Route to Chukotka from Murmansk, Russia August 23, 2019. REUTERS/Maxim Shemetov 

Officials, including General Director of Russian state nuclear agency Rosatom Alexei Likhachev, Governor of Chukotka Roman Kopin and Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov, applaud during a farewell ceremony as the floating nuclear power plant Akademik Lomonosov leaves the service base of Rosatomflot company for a journey along the Northern Sea Route to Chukotka from Murmansk, Russia August 23, 2019. REUTERS/Maxim Shemetov 

Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov attends a session of the St. Petersburg International Economic Forum (SPIEF), Russia June 7, 2019. REUTERS/Maxim Shemetov 

Russian President Vladimir Putin (C) and Russian President's special representative for Nature Protection, the Environment and Transport Sergei Ivanov (L) attend a meeting with members of the RDIF and representatives of the international investment community on the sidelines of the Saint Petersburg International Economic Forum (SPIEF) in St. Petersburg, Russia, June 6, 2019. Yuri Kochetkov/Pool via REUTERS 

Russian President Vladimir Putin, Russian Direct Investment Fund (RDIF) Chief Executive Officer Kirill Dmitriev and Russian President's special representative for Nature Protection, the Environment and Transport Sergei Ivanov attend a meeting with members of the RDIF and representatives of the international investment community on the sidelines of the Saint Petersburg International Economic Forum (SPIEF) in St. Petersburg, Russia, June 6, 2019. Yuri Kochetkov/Pool via REUTERS 

Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov attends a session of the St. Petersburg International Economic Forum (SPIEF), Russia June 6, 2019. REUTERS/Maxim Shemetov 

Russia's Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov arrives before the Victory Day parade, which marks the anniversary of the victory over Nazi Germany in World War Two, in Red Square in central Moscow, Russia May 9, 2019. REUTERS/Maxim Shemetov 

Sergei Ivanov, CEO of Russian diamond producer Alrosa, looks on during a Russia-Angola bilateral business forum in Moscow, Russia April 3, 2019. REUTERS/Maxim Shemetov 

Sergei Ivanov, CEO of Russian diamond producer Alrosa, looks on during a Russia-Angola bilateral business forum in Moscow, Russia April 3, 2019. REUTERS/Maxim Shemetov 

Sergei Ivanov, CEO of Russian diamond producer Alrosa, gestures during a Russia-Angola bilateral business forum in Moscow, Russia April 3, 2019. REUTERS/Maxim Shemetov 

Governor of Chuvashia Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov attends Delovaya Rossiya business forum in Moscow, Russia February 6, 2019. REUTERS/Maxim Shemetov 

Zimbabwe's President Emmerson Mnangagwa (L) shakes hands with Sergei Ivanov, CEO of Russian diamond producer Alrosa, during a meeting in Moscow, Russia January 14, 2019. REUTERS/Maxim Shemetov 

Zimbabwe's President Emmerson Mnangagwa (L) shakes hands with Sergei Ivanov, CEO of Russian diamond producer Alrosa, during a meeting in Moscow, Russia January 14, 2019. REUTERS/Maxim Shemetov 

Sergei Ivanov, CEO of Russian diamond producer Alrosa, delivers a speech at the company's office during the visit of Zimbabwe's President Emmerson Mnangagwa in Moscow, Russia January 14, 2019. REUTERS/Maxim Shemetov 

Sergei Ivanov, CEO of Russian diamond producer Alrosa, delivers a speech at the company's office during the visit of Zimbabwe's President Emmerson Mnangagwa in Moscow, Russia January 14, 2019. REUTERS/Maxim Shemetov 

Zimbabwe's President Emmerson Mnangagwa delivers a speech as he visits an office of Russian diamond producer Alrosa, with Alrosa CEO Sergei Ivanov seen nearby, in Moscow, Russia January 14, 2019. REUTERS/Maxim Shemetov 

Sergei Ivanov (R), Chief Executive of Russian diamond miner Alrosa, and Pavel Grachev, Chief Executive of Russian gold producer Polyus, arrive for a meeting of Kremlin aide Andrei Belousov with major Russian firms representatives in Moscow, Russia August 24, 2018. REUTERS/Tatyana Makeyeva 

Chief Executive of Russian diamond miner Alrosa, Sergei Ivanov leaves after talks of major Russian firms representatives with the government in Moscow, Russia August 24, 2018. REUTERS/Tatyana Makeyeva 

Russia's Defence Minister Sergei Shoigu (2nd R, front) and Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov (R, front) attend the annual international military-technical forum "ARMY" at Patriot Expocentre in Moscow Region, Russia August 21, 2018. REUTERS/Maxim Shemetov 

(L-R, front) Russia's Deputy Prime Minister Yuri Borisov, Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov and Defence Minister Sergei Shoigu attend the annual international military-technical forum "ARMY" at Patriot Expocentre in Moscow Region, Russia August 21, 2018. REUTERS/Maxim Shemetov 

(L-R, front) Russia's Deputy Prime Minister Yuri Borisov, Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov and Defence Minister Sergei Shoigu attend the annual international military-technical forum "ARMY" at Patriot Expocentre in Moscow Region, Russia August 21, 2018. REUTERS/Maxim Shemetov 

(R-L, front) Russia's Defence Minister Sergei Shoigu, Deputy Prime Minister Yuri Borisov and Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov attend the annual international military-technical forum "ARMY" at Patriot Expocentre in Moscow Region, Russia August 21, 2018. REUTERS/Maxim Shemetov 

Soccer Football - World Cup - Serbia Training - Spartak Stadium, Moscow, Russia - June 26, 2018 Serbia's Branislav Ivanovic and Marko Grujic during training REUTERS/Sergei Karpukhin 

Russian miner Alrosa's chief executive Sergey Ivanov attends a presentation of the Dynasty polished diamonds collection dedicated to the Tsar Peter the Great and the Romanov dynasty, which ruled Russia for 300 years, in Moscow, Russia, August 1, 2017. REUTERS/Tatyana Makeyeva 

Russian miner Alrosa's chief executive Sergey Ivanov attends a presentation of the Dynasty polished diamonds collection dedicated to the Tsar Peter the Great and the Romanov dynasty, which ruled Russia for 300 years, in Moscow, Russia, August 1, 2017. REUTERS/Tatyana Makeyeva 

Ramazan Abdulatipov, head of the southern Russian region of Dagestan, greets Special Presidential Representative for Environmental Protection, Ecology and Transport Sergei Ivanov as they arrive for the opening ceremony of the International Army Games 2017 in Alabino, outside Moscow, Russia, July 29, 2017. REUTERS/Maxim Shemetov 

Kremlin spokesman Dmitry Peskov attends a meeting of Russia's President Vladimir Putin with his Macedonian counterpart Gjorge Ivanov at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

Kremlin spokesman Dmitry Peskov attends a meeting of Russia's President Vladimir Putin with his Macedonian counterpart Gjorge Ivanov at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

(L-R) Russia's President Vladimir Putin, his Macedonian counterpart Gjorge Ivanov and Russia's Foreign Minister Sergei Lavrov attend a meeting at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

Russia's President Vladimir Putin (R) meets with his Macedonian counterpart Gjorge Ivanov at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

Russia's President Vladimir Putin (R) meets with his Macedonian counterpart Gjorge Ivanov at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

Russia's President Vladimir Putin (R) shakes hands with his Macedonian counterpart Gjorge Ivanov during a meeting at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

Russia's President Vladimir Putin (R) shakes hands with his Macedonian counterpart Gjorge Ivanov during a meeting at the Kremlin in Moscow, Russia, May 24, 2017. REUTERS/Sergei Karpukhin 

Chinese Vice Premier Wang Yang, Russian President's special representative on questions of ecology and transport Sergei Ivanov and Norwegian Foreign Minister Borge Brende wait before a session of the International Arctic Forum in Arkhangelsk, Russia March 30, 2017. REUTERS/Sergei Karpukhin 

Sergei Ivanov, Russian President's special representative on questions of ecology and transport, attends a meeting with President Vladimir Putin on an integrated development of the Arctic at a military base in Alexandra Land in the remote Arctic islands of Franz Josef Land, Russia March 29, 2017. Picture taken March 29, 2017. REUTERS/Sergei Karpukhin 

Russian President Vladimir Putin, Prime Minister Dmitry Medvedev and Sergei Ivanov, Putin's special representative on questions of ecology and transport, visit Alexandra Land in remote Arctic islands of Franz Josef Land, Russia March 29, 2017. Picture taken March 29, 2017. REUTERS/Sergei Karpukhin 

Russian President Vladimir Putin, Prime Minister Dmitry Medvedev, Natural Resources Minister Sergei Donskoi and Sergei Ivanov, Putin's special representative on questions of ecology and transport, visit remote Arctic islands of Franz Josef Land, Russia March 29, 2017. REUTERS/Sergei Karpukhin 

Russian President Vladimir Putin, Prime Minister Dmitry Medvedev, Natural Resources Minister Sergei Donskoi and Sergei Ivanov, Putin's special representative on questions of ecology and transport, visit remote Arctic islands of Franz Josef Land, Russia March 29, 2017. REUTERS/Sergei Karpukhin 

Russian President Vladimir Putin (L) and chief of President's staff Sergei Ivanov attend a ceremony marking the 72nd anniversary of the Nazi German invasion, at the Tomb of the Unknown Soldier by the Kremlin walls in Moscow, Russia, June 22, 2013. REUTERS/Sergei Karpukhin/File Photo 

Russian President Vladimir Putin (L) and chief of President's staff Sergei Ivanov attend a ceremony marking the 72nd anniversary of the Nazi German invasion, at the Tomb of the Unknown Soldier by the Kremlin walls in Moscow, Russia, June 22, 2013. REUTERS/Sergei Karpukhin/File Photo TPX IMAGES OF THE DAY

Russian President Vladimir Putin (R) shakes hands with chief of President's staff Sergei Ivanov as he attends a meeting with members of the Russian Direct Investment Fund and foreign investors in St. Petersburg, Russia, June 16, 2016. REUTERS/Grigory Dukor 

Russian President Vladimir Putin (L) and Chief of president's staff Sergei Ivanov attend a wreath-laying ceremony to mark the 71st anniversary of the victory over Nazi Germany in World War Two, at the Tomb of the Unknown Soldier by the Kremlin walls in Moscow, Russia, May 9, 2016. REUTERS/Maxim Shemetov 

Russian President Vladimir Putin (R) shakes hands with Chief of president's staff Sergei Ivanov before a meeting on the preparations for the upcoming Victory Day, marking the anniversary of the victory over Nazi Germany in World War Two, at the Kremlin in Moscow, Russia, April 5, 2016. REUTERS/Alexander Zemlianichenko/Pool 

Football Soccer - Russia v Lithuania - International Friendly - Otkrytie Arena stadium, Moscow, Russia - 26/03/16. Russia's (L-R, top) Fedor Smolov, Dmitri Tarasov, Oleg Ivanov, Aleksei Berezutski, Stanislav Kritsyuk, Sergei Ignashevich, (L-R, bottom) Igor Smolnikov, Pavel Mamaev, Dmitri Kombarov, Aleksandr Samedov and Denis Glushakov pose for a picture before the match. REUTERS/Maxim Zmeyev 

Football Soccer - Russia v Lithuania - International Friendly - Otkrytie Arena stadium, Moscow, Russia - 26/03/16. Russia's (R-L) Fedor Smolov, Sergei Ignashevich, Pavel Mamaev, Dmitri Kombarov, Dmitri Tarasov, Denis Glushakov, Oleg Ivanov, Aleksandr Samedov, Stanislav Kritsyuk, Aleksei Berezutski and Igor Smolnikov observe a minute of silence before the match. REUTERS/Maxim Zmeyev 

Chinese President Xi Jinping (2nd-R) meets Russian Presidential Chief of Staff Sergei Ivanov (2nd-L) at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool 

Chinese President Xi Jinping (Center-R) meets Russian Presidential Chief of Staff Sergei Ivanov (Center-L) at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool 

Russian Presidential Chief of Staff Sergei Ivanov meets Chinese President Xi Jinping (not pictured) at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool 

Secretary of the Central Commission for Discipline Inspection Wang Qishan (R) meets Russian Presidential Chief of Staff Sergei Ivanov (L) at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool 

Secretary of the Central Commission for Discipline Inspection Wang Qishan (R) meets Russian Presidential Chief of Staff Sergei Ivanov (L) at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool 

Chinese President Xi Jinping looks on before meeting Russian Presidential Chief of Staff Sergei Ivanov at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool 

Chinese President Xi Jinping (R) shakes hands with Russian Presidential Chief of Staff Sergei Ivanov (L) at The Great Hall Of The People on March 25, 2016 in Beijing, China. REUTERS/Lintao Zhang/Pool