He revealed his plea following DenilsonÃ¢â‚¬â„¢s sudden collapse during the 2-2 draw with Everton on Saturday.
Wenger said: “I said to DenilsonÃ‚Â afterwards: Ã¢â‚¬ËœIf that happens (again) you have to commit a handball.Ã¢â‚¬Â
After Denilson fell to the ground, Everton took possession and had a shot which was saved by goalkeeper Manuel Almunia.
Wenger said that he felt there was an important issue that had to be cleared up in these circumstances.
“I’m very serious. If you go down, and there hasn’t been a foul, you cannot ask Everton to stop their counter-attack and not to score,Ã¢â‚¬ÂÃ‚Â he added.
He made it clear that he was not blaming the behaviour of the opposition.
“No. I wasn’t [upset that Everton played on],” said the Arsenal manager.
Denilson pulled up with a sudden pain in his side and the Arsenal medical staff are still unsure what caused the BrazilianÃ¢â‚¬â„¢s sudden pain, although the player is to undergo a scan to see if he will be fit to face Bolton on Sunday.
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news