Carlos Arnoldo Salcido Flores (American Spanish: [?ka?los a??noldo sal?siðo ?flo?es]; born 2 April 1980) is a Mexican professional footballer. Salcido started his career as a left back, then converted to defensive midfielder, and now plays as a central defender.
After emerging through Guadalajaras youth system, he went on to be a mainstay for PSV Eindhoven, acting as vice-captain for the Dutch team and was the first player from Mexico to be champion in the Eredivise. Salcido also played a season for Fulham before returning to Mexico with Tigres UANL. In 2014 he returned to Guadalajara, winning the league title with the club in 2017.
Internationally, Salcido competed with the Mexico national team in three World Cups: 2006, 2010, 2014 and three Gold Cups: 2005, 2007, 2011, He was a member of Mexicos team that won the gold medal at the 2012 Summer Olympics. He made his first national team appearance at the age of 24 in 2004. In 2014, after the World Cup in Brazil, Salcido officially retired from the national team.