Cucurella promised ahead of this year's World Cup that if Spain won the tournament, he would honour De la Fuente, and he returned home in July with a victory medal before attending the national team's next camp with his new body art.
"I don’t regret it, honestly," Cucurella told Spanish radio station Cadena Cope when asked about the De la Fuente tattoo.
"I knew you were going to ask me about it. Some people have even suggested I get Mourinho’s face tattooed on me."
After moving to Real Madrid in July, Cucurella confirmed that his new manager had suggested a similar dedication.
"I do remember Mourinho sent me a photo with my chest and his face tattooed on it," he said.
Cucurella also fulfilled a promise to dye his hair red after Spain won the 2024 European Championship.
Spain take on Czechia in the Nations League on Thursday.