The pre-match talk was about whether David Moyes could mastermind a win against a European giant, something he never managed in his reign as Manchester United manager.
Sadly for Moyes, Real Sociedad’s winning goal would prove to get only the second loudest cheer of the match as Neymar accidentally tripped up the referee.
Neymar, in an attempt to meet a pass, collided with the unsuspecting referee and sent him flying (the video of which can be seen below).
The Brazilian’s approach of putting the referee on the floor, rather than throwing himself to the ground, didn’t pay off however as Moyes’ side ran out 1-0 winners.
Neymar wasn’t the only Barcelona player cursing his luck, as left back Jordi Alba managed to head home the Sociedad winner just two minutes after kick off.
Despite starting on the bench Neymar was in the thick of it and also picked up a booking. As the Sociedad keeper attempted a drop kick Neymar cheekily took it down in mid-air and was about to slot home an equaliser before the referee stopped the game and gave him a booking instead.
Barcelona would have gone top of La Liga with a win but remain a point behind fierce rivals Real Madrid after failing to capitalise on their loss at Valencia.