Alaves' Ander Guevara, falls by Barcelona's Fermin Lopez, right, during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's head coach Hansi Flick gestures during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Robert Lewandowski, left, celebrates alongside Raphinha after scoring the opening goal during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Robert Lewandowski, centre, jumps for the ball during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Lamine Yamal prepares to shoot on goal during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Robert Lewandowski, centre, challenges for the ball during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Alaves' Moussa Diarra, left, and Barcelona's Robert Lewandowski challenge for the ball during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Marc Casado, 4th left, takes on Alaves' Nahuel Tenaglia, left, during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Raphinha, 2nd left, is challenged by Alaves' Antonio Blanco, left, during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.

Barcelona's Pedri, 3rd left, controls the ball during a Spanish La Liga soccer match between Barcelona and Alaves at the Lluis Companys Olympic Stadium in Barcelona, Spain.