The USA midfielder has confirmed Tottenham have an option to sign him this summer.
Advertisement
Advertisement
Cardoso can be signed by Tottenham for €25m as part of the sale of Giovani Lo Celso to Betis last year.
But Cardoso told El Chiringuito this week: "I'm very happy here and I hope I can continue enjoying myself at Betis for many years to come.
"The Champions League? It's our dream and our goal."