On 7 May 2014, after Julen Lopetegui left for FC Porto, Celades was named manager of the Spanish under-21s after leaving the under-16 team. In October, the former lost their play-off against Serbia for entrance to the 2015 UEFA European Championship, in which they would have been defending champions; the 1–2 second leg loss in Cádiz was their first in 35 games.