Barcelona sporting director Deco has called for more clarity in the aftermath of the disallowed goal. He told Mundo Deportivo: "Why is it semi-automatic? I am lost. I still don't know if the boots were yellow or black. We don't want to go there because we don't want excuses, but there's a question: what happened? Where's the error occurred, if there's an error? If not, no problem, but we need an explanation because we're lost with what semi-automatic means. If there's an involvement from VAR, if the referee really can't do anything. If the semi-automatic system doesn't work, then we need to return to another system. This isn't a Barca issue, it's about improvements for all teams. Some things have improved, but in other areas we still have one person's interpretation. We still have controversial decisions, like the one at Anoeta on Sunday, which was probably incorrect."