Real Mallorca teen Takefusa Kubo has no problem with the jeers of Barcelona fans during Saturday's defeat at the Nou Camp.
The Japanese youngster has spent time in the Barcelona academy but is now on the books at Real Madrid.
"It's the fans' decision [to whistle me]," Kubo told Movistar.
"I took my decision and they have the right to whistle me, I think I deserve it, even though some fans were applauding and giving me support.
"Is it a shame? No, they have to see me as an opponent, not as a 18-year-old boy who plays football quite well."