Viewers for Arsenal and Liverpool's FA Cup tie have been quick to criticise John Brook's perceived lack of 'consistency' throughout the game in booking players for dissent.
The Reds ran out 2-0 winners thanks to an own goal from Jakub Kiwior and a no-look thumping strike from Luis Diaz on Sunday afternoon, with Jurgen Klopp's side heading back to Liverpool with a place in the next round confirmed.
Arsenal's poor finishing once again proved costly as the Gunners failed to put away their chances early on, with club legend Ian Wright pointing out his side's need for 'a killer'.