Protesters hold a large Bulgarian flag as they attend an anti-government demonstration in Sofia, Bulgaria September 10, 2020. REUTERS/Stoyan Nenov

A protester holds a large Bulgarian flag as he attends an anti-government demonstration in Sofia, Bulgaria September 10, 2020. REUTERS/Stoyan Nenov

A man wrapped in Bulgarian flag attends an anti-government demonstration in Sofia, Bulgaria, July 30, 2020. REUTERS/Stoyan Nenov

A protester throws an egg at the Bulgarian government building during an anti-government demonstration in Sofia, Bulgaria, July 30, 2020. REUTERS/Stoyan Nenov

A protester wearing a mask gestures next to the Bulgarian national flags, as he takes part in an anti-government demonstration in Sofia, Bulgaria July 29, 2020. REUTERS/Stoyan Nenov

A protester gestures next to the Bulgarian national flags, as he takes part in an anti-government demonstration in Sofia, Bulgaria July 29, 2020. REUTERS/Stoyan Nenov

Bulgarian President Rumen Radev waves after meeting protesters at an anti-government demonstration in Sofia, Bulgaria, July 23, 2020. REUTERS/Stoyan Nenov

Bulgarian President Rumen Radev waves after meeting protesters at an anti-government demonstration in Sofia, Bulgaria, July 23, 2020. REUTERS/Stoyan Nenov

A demonstrator waves a Bulgarian flag while standing on a windowsill during an anti-government protest, in Sofia, Bulgaria July 21, 2020. REUTERS/Stoyan Nenov

A demonstrator waves a Bulgarian flag during an anti-government protest, in Sofia, Bulgaria July 21, 2020. REUTERS/Stoyan Nenov

A general view shows the Bulgarian parliament after voting on a no-confidence motion against the government of Prime Minister Boyko Borissov in Sofia, Bulgaria, July 21, 2020. REUTERS/Stoyan Nenov

A general view shows the Bulgarian parliament during voting on a no-confidence motion against the government of Prime Minister Boyko Borissov in Sofia, Bulgaria, July 21, 2020. REUTERS/Stoyan Nenov

A general view shows the Bulgarian parliament after voting on a no-confidence motion against the government of Prime Minister Boyko Borissov in Sofia, Bulgaria, July 21, 2020. REUTERS/Stoyan Nenov

A man holds up a Bulgarian flag as people protest against the Bulgarian government on the sidelines of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 19, 2020. REUTERS/Francois Lenoir

A woman shows a photo of Bulgarian Prime Minister Boyko Borisov as people protest against his government on the sidelines of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 19, 2020. REUTERS/Francois Lenoir

People protest against the Bulgarian government on the sidelines of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 19, 2020. REUTERS/Francois Lenoir

People protest against the Bulgarian government on the sidelines of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 19, 2020. REUTERS/Francois Lenoir

Bulgarian Prime Minister Boyko Borissov and Dutch Prime Minister Mark Rutte react during the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 18, 2020. REUTERS/Francois Lenoir/Pool

Bulgarian Prime Minister Boyko Borissov gestures next to Germany's Chancellor Angela Merkel at the start of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 17, 2020. Stephanie Lecocq/Pool via REUTERS

Bulgarian Prime Minister Boyko Borissov gives a present to Germany's Chancellor Angela Merkel at the start of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 17, 2020. Stephanie Lecocq/Pool via REUTERS

Germany's Chancellor Angela Merkel (L) and Bulgarian Prime Minister Boyko Borisov (R) talk at the start of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 17, 2020. Stephanie Lecocq/Pool via REUTERS

Bulgarian Prime Minister Boyko Borissov and European Council President Charles Michel greet each other at the start of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 17, 2020. Stephanie Lecocq/Pool via REUTERS

Greece's Prime Minister Kyriakos Mitsotakis, Bulgarian Prime Minister Boyko Borissov and European Council President Charles Michel greet each other at the start of the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 17, 2020. Stephanie Lecocq/Pool via REUTERS

Greek Prime Minister Kyriakos Mitsotakis, Bulgarian Prime Minister Boyko Borissov and European Council President Charles Michel speak as they take part in the first face-to-face EU summit since the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium July 17, 2020. REUTERS/Francois Lenoir/Pool

Danish Foreign Minister Jeppe Kofod, Spain's Foreign Minister Arancha Gonzalez, Bulgarian Minister of Foreign Affairs Ekaterina Zaharieva and Croatia's Foreign Minister Gordan Grlic-Radman attend a meeting of EU foreign ministers at the European Council building in Brussels, Belgium July 13, 2020. Stephanie Lecocq/Pool via REUTERS

Spain's Foreign Minister Arancha Gonzalez and Bulgarian Minister of Foreign Affairs Ekaterina Zaharieva attend a meeting of EU foreign ministers at the European Council building in Brussels, Belgium July 13, 2020. Stephanie Lecocq/Pool via REUTERS

Spain's Foreign Minister Arancha Gonzalez and Bulgarian Minister of Foreign Affairs Ekaterina Zaharieva attend a meeting of EU foreign ministers at the European Council building in Brussels, Belgium July 13, 2020. Stephanie Lecocq/Pool via REUTERS

German Foreign Minister Heiko Maas and Bulgarian Foreign Minister Ekaterina Zaharieva put on protective masks as they attend a meeting of EU foreign ministers at the European Council building in Brussels, Belgium July 13, 2020. Stephanie Lecocq/Pool via REUTERS

People take part in a demonstration after prosecutors raided Bulgarian president's offices as part of investigations, in Sofia, Bulgaria, July 9, 2020. REUTERS/Stoyan Nenov

A man shout slogans during a demonstration in front of the Court of Justice after prosecutors raided Bulgarian president's offices as part of investigations, in Sofia, Bulgaria, July 9, 2020. REUTERS/Stoyan Nenov

A man holds national flag during a demonstration in front of the government building after prosecutors raided Bulgarian president's offices as part of investigations, in Sofia, Bulgaria, July 9, 2020. REUTERS/Stoyan Nenov

Bulgarian President Rumen Radev (C) talks to supporters at a demonstration after prosecutors raided Bulgarian president's offices as part of investigations, in Sofia, Bulgaria, July 9, 2020. REUTERS/Stoyan Nenov

Bulgarian President Rumen Radev (C) talks to supporters at a demonstration after prosecutors raided Bulgarian president's offices as part of investigations, in Sofia, Bulgaria, July 9, 2020. REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Fans of Lokomotiv Plovdiv are seen after the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Momchil Tsvetanov celebrates with the trophy with his teammates after winning the Bulgarian Cup, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv players celebrate after the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Momchil Tsvetanov celebrates after scoring his goal from the penalty spot, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Dimitar Krasimirov Iliev celebrates with the trophy after winning the Bulgarian Cup, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Dimitar Krasimirov Iliev celebrates with the trophy after winning the Bulgarian Cup, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov TPX IMAGES OF THE DAY

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 CSKA Sofia players look dejected after the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Bitcent Karagaren celebrates after the match with teammates, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Momchil Tsvetanov celebrates after the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Momchil Tsvetanov scores his goal from the penalty spot, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Momchil Tsvetanov celebrates after the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view inside the stadium as smoke from flares obscures the pitch, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view inside the stadium as smoke from flares obscures the pitch, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov TPX IMAGES OF THE DAY

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Bitcent Karagaren in action with CSKA Sofia's Ruben Rafael, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Bitcent Karagaren in action with CSKA Sofia's Petar Zanev, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Dimitar Krasimirov Iliev in action with CSKA Sofia's Valentin Antov, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view inside the stadium as smoke from flares obscures the pitch, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view inside the stadium as smoke from flares obscures the pitch, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view inside the stadium as smoke from flares obscures the pitch, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view of fans with flares inside the stadium during the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov TPX IMAGES OF THE DAY

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view of fans with flares inside the stadium during the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 General view of fans with flares inside the stadium during the match, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 Lokomotiv's Ante Aralica in action with CSKA Sofia's Valentin Antov and Ivan Turitsov, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 CSKA Sofia coach Milos Kruscic, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov

Soccer Football - Bulgarian Cup Final - CSKA Sofia v Lokomotiv Plovdiv - Vasil Levski National Stadium, Sofia, Bulgaria - July 1, 2020 CSKA Sofia's Graham Carey in action with Lokomotiv's Josip Tomasevic, following the outbreak of the coronavirus disease (COVID-19) REUTERS/Stoyan Nenov