Referee Clos Gomez was forced to halt proceedings close to the half-hour mark due to forward Williams receiving abuse from the home fans, leaving Sporting’s players to intervene and attempt to silence their own supporters.

After Williams, 22, was penalised for a push on Isma Lopez, supporters began to goad him, which resulted in a brief stoppage with the match official unwilling to continue in such a situation.

Williams was born and raised in Bilbao by parents from Ghana and Liberia. Bilbao only employs players who hail from the Basque region of Spain and France. Williams, 22, is the first black player to score for Bilbao.