Premier League games between Liverpool and Everton have produced 21 red cards, more than any other fixture, and while no one was sent off in the 228th meeting, it was a hot-blooded clash punctuated by gutsy tackling and flashpoints.
Koeman was particularly unhappy with the behaviour of the Liverpool bench following a high tackle by Ross Barkley on Dejan Lovren in the 39th minute, where the England midfielder was fortunate to escape with a yellow card.
"Tackles are part of football," Koeman told Sky Sports. "It's all about football, but we don't make a show from the bench like Liverpool.
"It's football - a hard and fair game," he added. "I don't like coaches from the bench the whole time shouting to referees and linesmen, making a big show about tackles.
They were crazy, they didn't need the physio on the pitch. It's a man's sport.
Read the full article on eurosport.co.uk: Koeman slams 'crazy' Liverpool bench after derby defeat