Davis Cup 2021 won Andrey Rublev of Russia

Highlights:

• The Davis Cup 2021 was won by the Russian Tennis Federation.
• The Davis Cup finals happened between Daniil Medvedev and Andrey Rublev of Russia.
• And Daniit Medvedev won the match, taking victory to the Russian Tennis Federation.
• The Davis Cup is also named the World Cup of Tennis as it is an international team competition in men's tennis.
• The Billie Jean King Cup is the women's equivalent of the Davis Cup. 
• The International Tennis Federation conducts it on hard courts.
• It first happened in 1900 as a trial between the US and Britain, and by 2016, 135 countries were participating in the tournament.
• The most victorious countries of the Davis cup are the USA, Australia, New Zealand, where the USA has won the Davis Title 32 times, Australia has won 28 times.
• It is a single-elimination tournament, as each match's loser is immediately eliminated from the tournament.
• The other type of tournament held is Playoff, where the top competitors determine the league champion.
• The most common type is the "regular season", also called Group Tournament. 
• The teams are divided into groups, and each group plays a specific number of games against their opponent.

• The International Tennis Federation manages the Davis Cup. 
• The ITF is the governing body of beach tennis, wheelchair tennis and world tennis. 
• It collaborates with the Association of Tennis Professionals (ATP) and Women's Tennis Association (WTA) to govern professional tennis.
• The ITF organizes Davis cup (of men), Billie Jean King Cup (of women), Grand Slam, Hopman Cup.