Barca began slowly but were able to dominate the game after their first goal on 20 minutes.
Another counter-attack shortly afterwards did produce the opening goal. Thiago broke forward and played in Alexis Sanchez, before collecting the return ball and firing past the goalkeeper.
Barca started to play a lot better after that and five minutes before half time they got their second. Thiago slipped the ball through to Tello, who sent the goalkeeper the wrong way and fired it in at the near post.
There was even time for Sanchez to test the goalkeeper again before the break, but he was equal to the task and the sides went in level.