Hawthorn captain James Sicily and Richmond's Rhyan Mansell will appeal their respective three-match AFL suspensions over incidents that left opponents concussed.
Amid uproar over the league's ongoing crackdown on dangerous tackles, rugged defender Sicily was banned for the tackle that knocked out Brisbane Lions midfielder Hugh McCluggage.
The match review officer's initial grading of careless conduct, severe impact and high contact was upheld by the tribunal earlier in the week.