On 29 October 2018, Solari was named caretaker manager of the first team after the dismissal of Julen Lopetegui. He assumed the role the next day, and became the official coach 14 days later because in Spain no club was allowed to have a caretaker for more than two weeks. He won the FIFA Club World Cup during his tenure, extending Real's reign in the competition to three consecutive titles. Solari was sacked on 11 March 2019.