Spain's training was cut short to just 23 minutes on Monday after one of their players was heavily insulted by a group of fans who watched the open practice session.
Gerard Pique, who voted in the Catalonia independence referendum, publicly criticised his government's violent stance towards voters on Sunday, and even threatened to quit playing for La Furia Roja.
The 30-year-old's criticism seemingly did not go down well with a section of Spain supporters as they whistled and chanted for him leave the team during a national training session.
Although the situation was not a violent one, Spanish media have reported that police did confiscate banners from the crowd, one of which described the defender as "sickening", while fans reportedly chanted "Pique, a***hole, Spain is your country… Pique, a***hole, leave the national team."
Despite this, national team coach Julen Lopetegui has confirmed his support for Pique, and is pleased with how the Catalonian has conducted himself since Sunday.
"The behaviour of Gerard has been exceptional," Lopetegui told Spanish radio station Cadena COPE.
"I wanted to see how he was and I saw he was motivated and enthusiastic. He's well and fired up, if it were not like that he wouldn't be with me."
Pique has made 91 appearances for Spain so far, and was a member of the 2010 FIFA World Cup and the 2012 UEFA European Championship-winning squads.
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