A round-up of the latest Liverpool news as Arne Slot admits one player ‘could have done better’ against Arsenal and Wataru Endo threatens to scupper the boss’ plan. Aaron Briggs steps in as Liverpool’s set-piece specialist coach vs ArsenalArne Slot rebuilt the coaching staff at Liverpool after replacing Jurgen Klopp but they remain without a set-piece specialist. So, Aaron Briggs stepped in to direct play from their attacking and defensive set-pieces as Liverpool beat Arsenal 2-1 in their friendly on Wednesday night. Briggs was stood on the touchline throughout the encounter at Lincoln Financi…