On Saturday Barcelona will wear a commemorative logo on their shirt for the match against Alaves. This patch, revealed by 'Footy Headlines', will be worn by the current LaLiga champions. This process is already adopted by many different leagues and competitions.
Inspired by the LaLiga logo the patch is circular, gold with white trim. The season in which the team won the league, in this case the "17/18" season, is incorporated into the design. It's still yet to be confirmed whether the patch will be in the centre of the shirt or on the sleeve.