"I understood from his words that he doesn't want to stay with us," Cagliari club president Massimo Cellino said. "I would have preferred it is he had said so to me and not to the newspapers, but there aren't offers for him.
"The only real club that is pushing for his signature is Arsenal."
A statement on the club's official website also confirmed that the player had been made available.
"Cagliari Calcio take note of the fact that Federico Marchetti has expressed his wish to leave due to his declaration with the press," the statement read.