Barcelona cruised to a 4-0 rout over 10-man Real Sociedad to regain the lead in Spain on Sunday. Gerard Martín, Marc Casadó, Ronald Araujo and Robert Lewandowski scored a goal each to put Barcelona one point ahead of second-placed Atletico Madrid at the top of the Spanish league. Barcelona is three points ahead of third-placed Real Madrid, which lost 2-1 …