The 32-year-old told Punto Radio: “I would love to go back home.
“In Bilbao I would not be far from home.
“I know what the atmosphere is like having played in San Mames with the Basque Country Select side and, to be honest, I loved it.”
Campo added: “I do not anything about any interest. I have not spoken to anyone.
“I have the rest of this season and then another year at Bolton.”