Barcelona's Lionel Messi (L) breaks through during the UEFA Champions League Group C match between Barcelona and Celtic in Barcelona, Sept. 13, 2016. Barcelona won 7-0. (Xinhua/Pau Barrena)
Barcelona's Lionel Messi (2nd R) celebrates scoring with Luis Suarez (1st R), Neymar (3rd R) and Andre Gomez (1st L) during the UEFA Champions League Group C match between Barcelona and Celtic in Barcelona, Sept. 13, 2016. Barcelona won 7-0. (Xinhua/Pau Barrena)
Barcelona's Neymar (R) breaks through during the UEFA Champions League group C match between Barcelona and Celtic in Barcelona, Sept. 13, 2016. Barcelona won 7-0. (Xinhua/Pau Barrena)
Barcelona's Lionel Messi (C) celebrates scoring with teammates during the UEFA Champions League group C match between Barcelona and Celtic in Barcelona, Sept. 13, 2016. Barcelona won 7-0. (Xinhua/Pau Barrena)
