Mo Salah brought the ball down and slipped in the Uruguayan, whose run was timed to perfection, but as the forwarded rounded David Raya he once again failed to find the back of the net with the goal gaping as Ben Mee got back to clear off the line.
Liverpool have had no problems scoring goals and before kick-off had remarkably found the back of the net in each of their last 26 top-flight away games in London but they’ve looked shaky in defence all season and conceded first for the 13th time this campaign.
Mee was the benefactor of a well-whipped in corner and despite the ball bobbling over the line via what looked to be the defender’s arm, VAR checked and confirmed Brentford’s lead on 19 minutes.
If it wasn’t for VAR, Liverpool’s vulnerable defence would have been breached three times, all from corners and Yoane Wissa, deputising for the injured Ivan Toney, would have had two of them but both times the Congolese forward was denied by an offside call.
Virgil van Dijk and Co. did not heed Wissa’s warning and as another ball was delivered from a wide area, this time from open play, the striker was left in acres of space to head past Alisson for a 2-0 lead.