If Pep plays the same team as vs Chelsea, there will be 5 changes in comparison to the line-up from the last game at Anfield: Laporte and Walker in for Stones and Zinch, and KDB, Grealish and Jesus in for Gundo, Sterling and Marez respectively.
What's the main difference between both line-ups? The one vs Chelsea is superior in terms of physicality and energy compared to that from February (e.g. Walker, Grealish and Jesus vs Zinch, Raz and Mahrez) and also more creative (KDB and Grealish vs Gundo and Raz). It is probably less likely to get bullied by Liverpool and the croud.
I expect the performance on Sunday (provided the players have recovered from the last 2 difficult games) to be at least as good as in February, probably even better. The result depends also on chance and referees, so hopefully it's good for us.