is a Spanish professional footballer who plays as a defensive midfielder for Major League Soccer club Inter Miami. A deep-lying playmaker capable of directing gameplay through short and calm passes and his singular reading of the game, he is widely regarded as one of the greatest defensive midfielders of all time, and one of the greatest players of all time.

Busquets arrived in Barcelona's first team in July 2008 and went on to receive the La Liga's Breakthrough Player in 2009. From the 2009–10 season, he was a first team regular and was a key playing contributor to club for 14 years, until his departure at the end of the 2022–23 season. Busquets made over 700 total appearances for the club, winning 32 trophies, including nine La Liga titles, seven Copa del Rey titles and three UEFA Champions Leagues. With the initial management guidance by Pep Guardiola and using the tiki-taka football philosophy, Busquets was part of a widely lauded midfield combination trio with Andrés Iniesta and Xavi; from 2008 to 2015 the trio together were instrumental in FC Barcelona's exceptional on-field successes in 7 seasons, winning five La Liga titles, three Copa del Rey titles, three UEFA Champions League titles and the continental treble (all three titles simultaneously) twice, in 2008–09 and 2014–15.

Busquets made his senior international debut for Spain in April 2009, making 143 appearances for the national side, scoring twice. He helped his country win the 2010 FIFA World Cup and UEFA Euro 2012 tournaments, and he also featured at three other World Cups and two European Championships. He retired from international football following the 2022 World Cup.