Jurgen Klopp expressed his anger at Brentford's second goal in Liverpool's 3-1 defeat as he praised the hosts for "stretching the rules" on the night.
Brentford were deserved winners at the Gtech Stadium as goals from Ben Mee, Yoane Wissa and Bryan Mbuemo condemned the visitors to defeat, despite Alex Oxlade-Chamberlain's second-half header.
The Reds suffered their fifth defeat of the season on Monday night as Thomas Frank's men added Klopp's team to their list of high-profile scalps that also includes Manchester City and United this term.
