FC Barcelona's Philippe Coutinho (R) vies with Deportivo Alaves' Guillermo Maripan during the Spanish La Liga soccer match between FC Barcelona and Deportivo Alaves in Barcelona, Spain, on Aug. 18, 2018. FC Barcelona won 3-0. (Xinhua/Joan Gosa)

FC Barcelona's Philippe Coutinho (R) shoots during the Spanish La Liga soccer match between FC Barcelona and Deportivo Alaves in Barcelona, Spain, on Aug. 18, 2018. FC Barcelona won 3-0. (Xinhua/Joan Gosa)

FC Barcelona's Nelson Semedo (L) vies with Deportivo Alaves' Manu Garcia during the Spanish La Liga soccer match between FC Barcelona and Deportivo Alaves in Barcelona, Spain, on Aug. 18, 2018. FC Barcelona won 3-0. (Xinhua/Joan Gosa)

FC Barcelona's Luis Suarez (2nd L) shoots during the Spanish La Liga soccer match between FC Barcelona and Deportivo Alaves in Barcelona, Spain, on Aug. 18, 2018. FC Barcelona won 3-0. (Xinhua/Joan Gosa)