Williams said, via ESPN: "I think we have a very long season ahead of us. We have very ambitious titles like the Champions League, which everyone would like to play in. What could be better than doing it with the club of my life? I would like to continue making history here at San Mames, with the fans, with my family, and with a lot of enthusiasm."
Williams added on continuing to play alongside his brother Inaki, who has been confirmed as Athletic Club's new captain: "We've both always dreamed of this moment. My brother is a role model for everyone, especially for me. I think he's the best person to be captain, and I can't wait to see him wearing the armband for a long time."