Liverpool manager Jurgen Klopp and Everton assistant coach Duncan Ferguson clashed at halftime on Saturday evening.
The Reds' poor form in the Premier League continued after falling to a 2-0 defeat at the hands of their cross-town rivals at Anfield on Saturday night.
It was the Reds' fourth successive loss at Anfield, which is a first in the Premier League era.
With the defending league champions trailing at halftime, a number of English media caught Klopp and Ferguson's little argument down the tunnel.
Renowned European football journalist, who was near the tunnel, detailed what was said between the two coaches.
"Argument Duncan Ferguson - Jurgen Klopp on the touch line after the Liverpool penalty shout. « Why are you laughing? » Klopp shouted at Ferguson who had a big grin on his face! « We are allowed to talk or is it just you Jurgen? » intervened Seamus Coleman!' he tweeted.
The Reds have now also lost four straight Premier League matches, which has left the side 16 points behind leaders Manchester City.
Scroll through the gallery below to see Liverpool's highest-paid players