Manchester City's David Silva (L) shoots to score his first goal against Crystal Palace during their English Premier League soccer match at the Etihad Stadium in Manchester, northern England December 20, 2014 (Photo: Reuters)
Manchester City's David Silva, right, celebrates after scoring his second goal against Crystal Palace during the English Premier League soccer match between Manchester City and Crystal Palace at the Etihad Stadium, Manchester, England, Saturday Dec. 20, 2014 (Photo: AP)
Aston Villa's Jores Okore (R) is challenged by Manchester United's Radamel Falcao during their English Premier League soccer match at Villa Park in Birmingham, central England December 20, 2014 (Photo: Reuters)
Manchester United's Radamel Falcao, centre left, celebrates after scoring against Aston Villa during the English Premier League soccer match between Aston Villa and Manchester United at Villa Park, in Birmingham, England, Saturday, Dec. 20, 2014 (Photo: AP)
Roma's Francesco Totti, right, and AC Milan's Keisuke Honda vie for the ball during their Serie A soccer match between Roma and AC Milan at Rome's Olympic stadium, Saturday, Dec. 20, 2014 (Photo: AP)
Roma's Francesco Totti, right, and AC Milan's Keisuke Honda vie for the ball during their Serie A soccer match between Roma and AC Milan at Rome's Olympic stadium, Saturday, Dec. 20, 2014 (Photo: AP)
Barcelona's Lionel Messi (C), Luis Suarez (L) and Jordi Alba celebrate a goal against Cordoba during their Spanish First division soccer match at Camp Nou stadium in Barcelona December 20, 2014 (Photo: Reuters)
Barcelona's Javier Mascherano (L) fights for the ball against Cordoba's Nabil Ghilas during their Spanish First division soccer match at Camp Nou stadium in Barcelona December 20, 2014 (Photo: Reuters)
Borussia Dortmund's goalkeeper Mitchell Langerak, Mats Hummels and Ciro Immobile (L-R) react after the German Bundesliga first division soccer match against Werder Bremen in Bremen, December 20, 2014 (Photo: Reuters)
Werder Bremen's Fin Bartels (R) and Borussia Dortmund's Sebatian Kehl (C) fight for the ball during their German Bundesliga first division soccer match in Bremen, December 20, 2014 (Photo: Reuters)