Brentford manager Thomas Frank has conceded he was "irritated" by what he saw from his players at Anfield as Liverpool put three past the Bees with no reply.
Goals from Fabinho, Alex Oxlade-Chamberlain and Takumi Minamino were enough to separate the two sides as Jurgen Klopp's Reds leapfrogged Chelsea into second-place after the Blues were beaten away at Manchester City on Saturday.
Frank's side put up a convincing fight for much of the first-half, before Fabinho nodded home for Liverpool's opener in the 44th minute after Brentford allowed Trent-Alexander Arnold's cross to bounce inside the box.