Liverpool's English midfielder Raheem Sterling (R) challenges Arsenal's Spanish midfielder Santi Cazorla during the English Premier League football match between Liverpool and Arsenal at Anfield in Liverpool, Northwest England, on December 21, 2014. AFP PHOTO / PAUL ELLIS == RESTRICTED TO EDITORIAL USE. NO USE WITH UNAUTHORIZED AUDIO, VIDEO, DATA, FIXTURE LISTS, CLUB/LEAGUE LOGOS OR LIVE SERVICES. ONLINE IN-MATCH USE LIMITED TO 45 IMAGES, NO VIDEO EMULATION. NO USE IN BETTING, GAMES OR SINGLE CLUB/LEAGUE/PLAYER PUBLICATIONS. == (Photo credit should read PAUL ELLIS/AFP/Getty Images)