Leicester have issued a statement hitting out at the RFU's conduct in their case against director of rugby Richard Cockerill.
The Tigers boss was handed a nine-match ban after being found guilty of misconduct following his altercation with fourth official Stuart Terheege during the Aviva Premiership final against Northampton on 25 May.
Cockerill remonstrated with Terheege after a dangerous tackle from Courtney Lawes on Leicester fly-half Toby Flood.
Lawes was penalised for the tackle but Cockerill wanted the incident to be referred to the television match official and felt the Northampton lock deserved a yellow card, at least.
Cockerill contested the charges but he was found guilty of "using words that were obscene, inappropriate and unprofessional, and behaviour that was inappropriate and unprofessional".
He was also fined £500 in costs and will be unable to be involved in match-day coaching activities before, during and after matches from 7 September until 2 November.
A Leicester statement read: "Following the verdict of the Rugby Football Union disciplinary hearing, Leicester Tigers are extremely disappointed that Richard Cockerill has been found guilty of any offence relating to the Aviva Premiership Final.
"The club will, therefore, await the full written judgement so it can determine whether to appeal the disciplinary panel's decision or not.
"Leicester Tigers are, however, disappointed with the RFU's conduct in this matter. There are elements of the way in which they have conducted this case which, in our opinion, calls into question the new disciplinary structure and we will be taking this up with the RFU at the earliest opportunity.
"The club will not make any further comment about this until there has been an opportunity to discuss it with the Union and it is appropriate that this is dealt with privately.
"Richard Cockerill has been a central part of Leicester Tigers' continued success over many years and the Club will fully support him and the rest of the coaching team for the 2013/14 season."