Barcelona attacker Pedro has gatecrashed the Spain squad to make the final cut for the Euros.
Pedro struck twice in the Copa del Rey final victory on Friday after being left out of Vicente del Bosque's original squad.
Del Bosque told Marca: "All those that have been with us can feel a little hurt.
"We have taken them and left them, but in August there are new squads. They need to be aware that they are very close to the national team.
"The seven that have been left out are a little upset, but they are good sportsmen. It was unthinkable that someone would debut and then come with us.
"We always had Pedro in mind. He has had an irregular season like many others, but we valued his trajectory over the medium term and for this reason we have taken him. We need wide players that are efficient and can complement the bench.
"I didn't have the Olympics in mind when it came to Adrian. Mata and Javi Martinez will be in the same position. We have preferred other options, but we recognise that he has been brilliant in these days with us. He has done everything very well.
"Negredo and Soldado are two extraordinary and distinct players. One is quicker but the other offers more to the play of the team."
Casillas (Real Madrid), Valdes (Barcelona), Reina (Liverpool); Alba (Valencia), Albiol, Arbeloa, Ramos (all Real Madrid), Juanfran (Atletico Madrid), Pique (Barcelona), Martinez (Athletic Bilbao); Xavi, Andres Iniesta, Busquets, Fabregas (all Barcelona), Alonso (Real Madrid), Silva (Manchester City), Cazorla (Villarreal), Navas (Sevilla), Mata (Chelsea); Llorente (Athletic Bilbao), Torres (Chelsea), Negredo (Sevilla), Pedro (Barcelona).