The Premier League is the top tier of professional football in England, featuring 20 teams that compete annually. Each team plays 38 matches, facing every other team twice, once at home and once away. The league operates on a system of promotion and relegation with the EFL Championship, meaning the lowest-performing teams are relegated to the lower division, while the best teams from the Championship are promoted. Some of the most well-known Premier League teams include Manchester United, Liverpool, Chelsea, and Arsenal. These clubs have rich histories and large fan bases, contributing to the league's popularity worldwide. The competition is known for its exciting matches and high level of talent.