Vallejo, the surprise name in Lopetegui's training camp
Spain have already confirmed the 23 players who will compete in Russia to try and add a second star to the nation's crest. Coach Julen Lopetegui released his squad on Monday, leaving out big names such as Alvaro Morata and Marc Bartra, whilst making room for more surprising names like Nacho Monreal.
After the squad list was announced, Spain have now revealed on Tuesday the rest of the players that will take part in Spain's preparatory phase for the tournament, training alongside the first team squad.
The biggest news is that Real Madrid's Jesus Vallejo is included, despite only playing 12 times for Zinedine Zidane's side this season.
Inaki Williams, Yeray, Rodrigo, Nunez, Mikel Oyarzabal and Carlos Soler are the other names that make up the seven. Training will commence on May 28, in the Las Rozas football centre, at 18:30.