Costa joined Segunda Division side Albacete on a season-long loan in August 2008 on the advice of his representatives and Atletico Madrid director Jesus Garcia Pitarch, who rejected an approach from Malaga due to fears of what his young Brazilian striker would get up to on the Costa del Sol.
"Diego was labouring under a couple of serious misconceptions when he arrived," Juan Ignacio Martinez, Albacete's coach at the time, told Guillen. "First of all, he had no idea that Albacete wasn't on the coast and therefore didn't have a beach and, secondly, he thought he was coming to a much better team."
Costa travelled to Puertollano to watch his new team play in the final of the Castilla La Mancha Cup. He was less than impressed.
"I made a point of being completely up front with him about the quality of the players we had, and at half-time he told me that after having seen the kind of football we were producing, there was no way he was staying," Martinez added. "He was adamant. He was going back to Madrid!"