Barcelona, who have only lost one match all season, are now twelve points clear at the top of La Liga after Arlético Madrid, their nearest rivals, fell further behind after losing 2-1 at Rayo Vallecano.
Lass put Atlético into the lead after just three minutes and Leo Baptistao added a second before the break. It wasn’t until well into stoppage time, the 94th minute of play, that Falcao pulled one back for Atlético.