Athletic Bilbao matchwinner Inaki Williams says Sunday's goal was the best of his career.

Williams hit a screamer to beat Barcelona 3-2 in the Supercopa de Espana final in Malaga last night.

“For what it means, it's the best (of my career)," he told Movistar after the game. He considers that Athletic won the final “through heart and faith".

“We played good football, (a symptom of what) the coach wants form us," he said of Marcelino Garcia Toral, who only took over a fortnight ago.

“We fought, with passion, that's what Athletic is. I think we're fair winners. It's everyone's doing, including the previous technical team. We can dream of achieving big things."