‘Playing with Inaki in the first team was a little strange, because we’d always played together in the park, and then we were playing in a big stadium like San Mames’ Nico Williams on what it’s like to play alongside his brother

Iñaki Williams and brother Nico celebrate a goal for Athletic Club in August 2022.

Football history has plenty of examples of brothers who have reached the pinnacle of the sport.

The Charlton brothers were teammates when England won the World Cup in 1966, while the Neville brothers starred for both the Three Lions and Manchester United. Yaya and Kolo Toure are both Premier League winners, while the De Boer and Laudrup brothers lit up Europe back in the day.