The Challenger de Santiago, known as Challenger de Santiago Dove Men+Care (formerly known as the Copa USS, Cachantún Open by KIA and the Cachantún Cup), is a professional tennis tournament played on outdoor red clay courts. It is part of the Association of Tennis Professionals (ATP) Challenger Tour. It was held annually in Providencia, Chile, from 2005 to 2009. The tournament was then moved to Vitacura, Santiago Metropolitan Region. The October 2021 editions were played at the Club Palestino in Las Condes.