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The 23-year-old has signed a contract until 2030 with Diego Simeone's side after a successful spell at the Seville-based club.

Cardoso played a key role in helping Betis reach the final of the UEFA Conference League in May, where it lost to Chelsea.

Neither club disclosed the transfer fee, but reports in Spanish media claim the deal is worth around €30 million ($53.5 million).

Cardoso, who also holds an Italian passport, has made 22 appearances for the United States national team since his debut in 2020.