Barcelona fall back again

Barcelona were beaten 1-0 by  a relegation-threatened team that had not won since January. What’s going on ?

https://www.youtube.com/watch?v=o_hN675aasM

 

Meanwhile David Villa scored two goals against Celta Vigo to take Atletico Madrid to the top of the charts…

http://www.youtube.com/watch?v=R6p0HDKl4I0