He says the Blues were WRONG to go public, WRONG to pursue the matter and WRONG to make lawyers rich.
Wenger claims the European champions have “little proof” to back up their official complaint that Clattenburg used inappropriate language about John Obi Mikel during Sunday’s clash with Manchester United.
He said: “I believe one of the best things in sport, especially in England, is that it is a battle on the pitch and then you sort out the problems you have had internally.
“When I didn’t behave well, I prefer that I have an explanation from the referee rather than going public with little proof.
“If football becomes a sport to make the lawyers rich, I am not a fan of it.
“I didn’t follow the whole Clattenburg story completely but I am a deep supporter of doing these things internally.
“I have had occasions when the referee has said some things and it can happen that a referee doesn’t behave well. They are not all angels.
“But one of the great things in sport is tolerance, forgiveness and internal explanation.
“I was not always behaving in certain situations but it is always better to sort it out in the room.”