Jetta was offered a one-match suspension by the MRP after being charged with a level-two striking offence against Grimes in last Saturday night's Dreamtime at the 'G game.

But despite challenging the charge at the Tribunal Jetta's one-game penalty was not increased, meaning he will miss Essendon's clash against Greater Western Sydney on Saturday night.

Earlier, Jetta had given evidence that his blow on Grimes had been a pushing motion rather than a strike. Jetta also said he had applied so little force to Grimes he had been surprised the Richmond defender had fallen to the ground.

Legal counsel for Jetta, Dermot Dann, argued the Tribunal should be wary of relying on Grimes' reaction to Jetta's blow as evidence it was of sufficient force to be a strike, saying a different interpretation could be formed from the video footage of the incident.

After the hearing Essendon football manager Paul Hamilton said Jetta was disappointed by the Tribunal's decision.

""He's disappointed because he felt it was really on the minor end of the scales,"" Hamilton said.

""At no stage has he denied that contact was made. It was felt it was negligible, but the jury were clearly of the opposite opinion.""

Jetta also became the first AFL player to be charged with staging after last Saturday night's clash with Richmond, following an incident when he fell to the ground after a light bump from Tigers defender Steven Morris.

Hamilton said Essendon had also considered contesting that charge at the Tribunal but had accepted Jetta's written reprimand as it supported the AFL's wider stand against staging.

""I think with the staging one we were prepared to accept it,"" Hamilton said.

""Clearly there have been a lot worse examples in recent weeks … we thought it was minimal but it wasn't something we were going to dispute.