BARCELONA: La Liga leaders Barcelona stumbled 1-0 at home against Leganes on Sunday as they suffered another blow in the Spanish title race. Sergio Gonzalez headed home from a corner after four minutes for the visiting minnows and the Catalans missed a host of presentable chances as they failed to mount a comeback. After a superb start to the season, Barcelona have lost three of their last six league games and won just one of those, with their lead whittled away.