Reds fans on social media are delighted at the prospect of getting £25million ($33m) plus add-ons for a player who has made less than five appearances for Liverpool's first team.
X user @treconato was blown away by the news, posting: "30 mil is insane business."
Meanwhile, @JoeWood9991 praised sporting director Richard Hughes, saying: "£57mil+ sell on clauses for Carvalho & Sepp Van Den Berg is brilliant work Sir Richard Hughes."
@twoth0usand took aim at the buying party, simply writing: "Brentford got scammed twice."
Liverpool fan @PaulEyezOnMe agreed that the deal was more favourable for the Reds, posting: "Rinsing Brentford for millions."
While @Ma6eS_9 was surprised at the figure, adding: "Wow, that’s a lot of money for someone who barely played in the PL."