The 160-times capped skipper of Vicente del Bosque's national team was recently whistled at the Santiago Bernabeu, leading many of his team-mates to leap to his defence
Spain new boys Juanmi and Vitolo are the latest Roja figures to jump to the defence of under-fire goalkeeperIker Casillas.
The Real Madrid star, who is captain of the Spanish national team as well as los Blancos, has faced heavy criticism in the past couple of seasons and was on the losing side in Sunday's Clasico against Barcelona.
However Gerard Pique, a team-mate with Spain since 2009, came out in support of Casillas in the build-up to their Euro 2016 qualifier against Ukraine and friendly against the Netherlands.
And Vitolo, Sevilla's in-form winger, said: "No one can doubt Casillas. He is the captain of this team that has won a World Cup and two European Championships.
"Maybe your club may be going through bad times, but I do not doubt him."
Juanmi, another uncapped inclusion in Vicente del Bosque's squad (alongside Vitolo and Sergio Asenjo), also offered words of support for Casillas.
"Iker is an example," he said. "He has given a lot to this team. With him there are these titles. He is a 10 as a person and trains at 100 per cent."
Casillas has 160 caps for Spain, winning the World Cup in 2010 and two European Championships either side of the triumph in South Africa.
