Setien led Betis to wins over Barcelona, Actual Madrid and Atletico Madrid final season, however he was sacked on the finish of the marketing campaign.
He has agreed to a two-and-a-half-year deal and might be offered to the media at 1.30pm on Tuesday.
Nicknamed El Maestro, he was greatest identified for his Racing de Santander spells, beginning and ending his 19-year skilled profession on the membership.
He performed a complete of 374 matches and scored 58 objectives over 15 seasons on the membership.
Within the 2000s, Setien began a managerial profession, occurring to educate a number of groups together with Racing.