Liverpool's Brazilian midfielder Roberto Firmino (R) shakes hands with Liverpool's English striker Daniel Sturridge (L) as Firmino is substituted during the UEFA Champions League Group E football match between Liverpool and Spartak Moscow at Anfield in Liverpool, north-west England on December 6, 2017. / AFP PHOTO / Paul ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)
Liverpool's German manager Jurgen Klopp (L) shakes hands with Liverpool's English striker Daniel Sturridge (R) at the end of the UEFA Champions League Group E football match between Liverpool and Spartak Moscow at Anfield in Liverpool, north-west England on December 6, 2017. / AFP PHOTO / Paul ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)
NEWCASTLE UPON TYNE, ENGLAND - DECEMBER 06: Substitute Daniel Sturridge of Liverpool walks to the bench past Jurgen Klopp manager of Liverpool prior to the Barclays Premier League match between Newcastle United and Liverpool at St James' Park on December 6, 2015 in Newcastle upon Tyne, England (Photo by Michael Regan/Getty Images)
LIVERPOOL, ENGLAND - FEBRUARY 25: Daniel Sturridge of Liverpool reacts during the UEFA Europa League Round of 32 second leg match between Liverpool and FC Augsburg at Anfield on February 25, 2016 in Liverpool, United Kingdom. (Photo by Clive Brunskill/Getty Images)
LIVERPOOL, ENGLAND - OCTOBER 22: Substitute Daniel Sturridge of Liverpool looks on from the bench during the Premier League match between Liverpool and West Bromwich Albion at Anfield on October 22, 2016 in Liverpool, England. (Photo by Jan Kruger/Getty Images)
