Antonis Migiakis was a star forward for Greek football team Panathinaikos in the 1930s. He is probably best remembered for his memorable performance in his team's 8–2 victory over Olympiakos. During his career he was capped 17 times, scoring 3 goals, for the Greece national football team.
The Greece women's national football team represents Greece in international women's football. The only international tournament the team took place in were the 2004 Summer Olympics in Athens. Automatically qualified as hosts, Greece lost all three matches in their group without scoring a goal.
The men's football tournament has been a regular Asian Games sporting event since the 1951 edition, while the women's tournament began in 1990.
The United States U-23 men's national soccer team, also known as the United States men's Olympic soccer team, is a youth soccer team operated under the auspices of U.S. Soccer. Its primary role is qualification into and competition at the quadrennial Olympic Football Tournament, the next of which is to be held during the 2024 Summer Olympics in Paris, France. The team's most recent major tournament was the 2020 edition at the Tokyo Olympics, in which the United States team did not qualify. Their most recent qualification was the tournament at the 2008 Summer Olympics, where the team was eliminated in the group stage.
The Brazil national under-23 football team represents Brazil in international football competitions during Olympic Games and Pan American Games. The selection is limited to players under the age of 23, except three overage players. The team is controlled by the Brazilian Football Confederation (CBF). Brazil U23 is one of the most successful teams in the Olympic football tournament, having won it twice.
The Lebanon national under-23 football team, also known as the Lebanon Olympic football team, represents Lebanon in international under-23 association football competitions. Controlled by the Lebanese Football Association (LFA), the squad is governed by the Asian Football Confederation (AFC) continentally, and FIFA worldwide. The team also serves as the national under-22 football team of Lebanon.
The Japan national under-23 football team is a national association football youth team of Japan and is controlled by the Japan Football Association. The team won the gold medal at the 2010 Asian Games and were champions in the 2016 AFC U-23 Championship. Since 1992, it was decided that teams targeting athletes under the age of 23 will participate in the Olympics. Therefore, the name changes to Japan national under-22 football team the year before the Olympics and Japan national under-21 football team two years prior. The exception to this was the 2020 Tokyo Olympics, which was postponed one year, so in 2021, the team was called the Japan national under-24 football team.
The Uruguay national under-23 football team represents Uruguay in under-23 international football competitions such as the Olympic Games, CONMEBOL Pre-Olympic Tournament and Pan American Games. The selection is limited to players under the age of 23, except three overage players. The team is controlled by the Uruguayan Football Association (AUF).
Ghana U23 football team, represents Ghana in international football competitions in Olympic Games, All-Africa Games, and CAF U-23 Championship. The selection is limited to players aged 23 and under the age of 23, except during the Olympic Games where the use of three overage players is allowed. The team is controlled by the Ghana Football Association (GFA).
The Spain Olympic football team represents Spain in international football competitions in the Olympic Games. The selection is limited to players under the age of 23, except for the Olympics which allows the men's team up to three overage players. The team is controlled by the Royal Spanish Football Federation. Having qualified for five Olympic competitions since 1992, Spain has won one gold medal (1992) and two silver medals. It is one of the most successful Olympic teams.
The Mexico national under-23 football team represents Mexico in under-23 international football competitions such as the Olympic Games and Pan American Games. The selection is limited to players under the age of 23, except for the Olympic Games which allows the men's team up to three overage players. The team is controlled by the Mexican Football Federation (FMF), the governing body of football in Mexico.
The Sweden Olympic football team is the football team representing Sweden in Olympics and is controlled by the Swedish Football Association. The team has been active since 1984, when the IOC restricted UEFA countries to only include players without FIFA World Cup appearances.
The Paraguay national under-23 football team, also known as the Paraguay Olympic football team, represents Paraguay in international football competitions in Olympic Games and Pan American Games. The team is governed by the Paraguayan Football Association and is limited to players under the age of 23, except three overage players, ostensibly possessing veteran experience and expertise, in accordance with FIFA regulations.
Theodoros "Thodoris" Vlachos is a retired Greek water polo player and the current coach of the Greece men's national water polo team.
The Tunisia Olympic football team, nicknamed Les Aigles de Carthage , is the national under-23 football team of Tunisia and is controlled by the Tunisian Football Federation, represents Tunisia in international football competitions and in the Olympic Games, Africa U-23 Cup of Nations and the UNAF U-23 Tournament. The selection is limited to players under the age of 23, except during the Olympic Games where the use of three overage players is allowed.
Kyriakos "Koulis" Iosifidis is a retired Greek water polo player and water polo coach. As a player, he was part of the Greece men's national water polo team at the 1968 and 1972 Olympic Games. and at club level member of Greek powerhouse Ethnikos Piraeus with whom he won 19 Greek Championships between 1964 and 1983.
The Bolivia national under-23 football team, also known as the Bolivia Olympic football team, represents Bolivia in international football competitions during Olympic Games and Pan American Games. The selection is limited to players under the age of 23, except for three overage players. The team is controlled by the Bolivian Football Federation.
The Ecuador national under-23 football team represents Ecuador in international football competitions during Olympic Games and Pan American Games. The selection is limited to players under the age of 23, except for three overage players. The team is controlled by the Ecuadorian Football Federation.
The men's football tournament at the 2020 Summer Olympics was the international football tournament in Japan from 22 July to 7 August 2021. The sixteen participating national teams were required to submit squads of 18 players – of which two have to be goalkeepers – by 30 June 2021, 23 days prior to the opening match of the tournament. Additionally, teams could name a maximum of four alternate players, numbered from 19 to 22. The alternate list could contain at most three outfielders, as at least one slot was reserved for a goalkeeper. In the event that a player on the submitted squad list suffered an injury or illness, that player would have been able to be replaced by one of the players in the alternate list. Only players in these squads were planned to be eligible to take part in the tournament. On 2 July, FIFA confirmed that there was a change for the 2020 Olympics, allowing all 22 players named to be available on the roster, with 18 being named for each match. This change was implemented due to the challenges of the COVID-19 pandemic. The official squad lists were released by FIFA on 7 July 2021.
Sweden 9–0 Greece 
