Barcelona's Argentinian forward Lionel Messi (R) celebrates his goal beside Barcelona's defender Gerard Pique during the Spanish league football match FC Barcelona vs RCD Espanyol at the Camp Nou stadium in Barcelona on December 18,...More

Luis Suarez of FC Barcelona celebrates after scoring his team's first goal during the La Liga match between FC Barcelona and RCD Espanyol at the Camp Nou stadium on December 18, 2016 in Barcelona, Spain.

Lionel Messi of FC Barcelona celebrates after scoring his team's fourth goal during the La Liga match between FC Barcelona and RCD Espanyol at the Camp Nou stadium on December 18, 2016 in Barcelona, Spain.

Barcelona's defender Jordi Alba celebrates his goal during the Spanish league football match FC Barcelona vs RCD Espanyol at the Camp Nou stadium in Barcelona on December 18, 2016. / AFP / JOSEP

Lionel Messi of FC Barcelona celebrates after scoring his team's fourth goal during the La Liga match between FC Barcelona and RCD Espanyol at the Camp Nou stadium on December 18, 2016 in Barcelona, Spain.

Barcelona's Argentinian forward Lionel Messi celebrates his goal during the Spanish league football match FC Barcelona vs RCD Espanyol at the Camp Nou stadium in Barcelona on December 18, 2016. / AFP / JOSEP

Barcelona's Argentinian forward Lionel Messi celebrates his goal during the Spanish league football match FC Barcelona vs RCD Espanyol at the Camp Nou stadium in Barcelona on December 18, 2016. / AFP / JOSEP

Lionel Messi of FC Barcelona scores his team's fourth goal during the La Liga match between FC Barcelona and RCD Espanyol at the Camp Nou stadium on December 18, 2016 in Barcelona, Spain.

Lionel Messi of FC Barcelona celebrates with his team mate Luis Suarez after scoring his team's fourth goal during the La Liga match between FC Barcelona and RCD Espanyol at the Camp Nou stadium on December 18, 2016 in Barcelona,...More