Liverpool: Liverpool's performance in defeat by Brentford was "not good enough", said Andrew Robertson, after a string of defensive mistakes meant the Reds missed the chance to close in on the English Premier League's (EPL) top four.
The Reds shipped three poor goals at the Community Stadium as Brentford ran out deserved winners.
In a desperate first half, Ibrahima Konate scored an own goal at a corner and, having escaped conceding two further goals at set-pieces because of offside decisions on video review, Liverpool fell two behind when a mistake from Harvey Elliott allowed Mathias Jensen to set up Yoane Wissa.
Reds boss Jurgen Klopp made a triple substitution at half-time and Alex Oxlade-Chamberlain reduced the deficit but another error late on, this time from Konate, let Bryan Mbeumo in to seal the win.
The Reds, who would have gone within a point of fourth with a win, have now dropped 23 points this season, one more than in the entire campaign last season, BBC sports reported.
Brentford manager Thomas Frank praised his "incredible" players after their impressive victory over Liverpool.
The Bees won 3-1 at the Community Stadium to extend their unbeaten EPL run to six matches.
Frank and his players celebrated with their supporters at full-time, the victory moving Brentford up to seventh place in the table.