The league has analysed images and utilised lip-readers to identify those responsible for the alleged racist abuse.
A leading member of the midfield ranks at La Liga outfit Real Sociedad played no part in group training on Friday.That’s according to Mundo Deportivo, who point towards Martín Zubimendi as the
Barcelona could make it seven victories on the spin on Sunday in Spain's La Liga as they host the unpredictable Real Sociedad on Sunday.  The in-form home side will be determined to win and return to the top of the table after Saturday's results saw Atletico Madrid rise to the summit with a 1-0 win over Athletic Club.
After both playing in the Copa Del Rey and having European soccer to worry about midweek, it will be interesting to see how much rotation there is, but for Hansi Flick's Barcelona, there's quite an opportunity to take against Real Sociedad on Sunday.
Barcelona has cruised to a 4-0 rout of 10-man Real Sociedad to regain the Spanish league lead. Gerard Martín, Marc Casadó, Ronald Araujo and Robert Lewandowski scored a goal each to put Barcelona one point ahead of second-placed Atletico Madrid.
Barcelona reclaimed top spot in La Liga with a comfortable victory over 10-man Real Sociedad. Atletico Madrid had leapfrogged them following their 1-0 win over Athletic Club on Saturday.
After a mixed Saturday in La Liga for the Madrid clubs, Barcelona know victory over Real Sociedad will lift them to the top of the table.
Another brilliant attacking display from Barcelona saw them decimate 10-men Real Sociedad 4–0 to continue their La Liga winning streak and cement their status as table-toppers.