Real Madrid and Spain midfielder Isco has claimed his international teammate Gerard Pique is not fazed by boos and jeers from the crowd, following the national side's 3-0 win over Albania on Friday.
During the game in Alicante, Barcelona defender Pique - who has become a controversial figure with some sections of the Spanish support due to his stance on Catalan independence - was greeted with jeers from the home fans whenever he received possession.
However, Isco insists that while the crowd are free to do what they want, the World Cup-winning defender remains important for the team.
Talking after the game, as quoted by Marca, Isco said: "That [jeering] is what he opens himself up to. We know that on the pitch he is very important for us.
"He has been with the Spanish national teams for 15 years and has shown his commitment."
During the win, in which sealed Spain's qualification for the World Cup in Russia next summer, Pique received a booking which will see him suspended for the final and group tie with Israel next month.
While there will be the spotlight will be off the Barcelona defender for the next international tie, Isco commented that his teammate Pique is a 'natural' at taking criticism from the fans.
"People are free to whistle him and to think whatever and he takes it naturally," he added. "It's complicated to mix politics with football and what Spain is going through is a shame."
With qualification already assured thanks to goals against Albania from Isco, as well as cousins Thiago and Rodrigo, Pique's suspension for the Israel game could prove fortuitous for all parties, as heated debate over Catalan independence continues in Spain.