Barcelona blows chance to top Madrid.

Barcelona blew the chance to go top of La Liga as they were stunned by a sparkling Celta Vigo at the Balaidos.

Iago Aspas inspired the hosts into a 3-0 lead at the break, setting up Pione Sisto's opener, scoring a fine second and forcing Jeremy Mathieu's own goal.

Barcelona fought back through Gerard Pique's header and Neymar's penalty, only for Marc-Andre ter Stegen's awful error to hand Celta their fourth goal.