Both players have been cited by the match review panel for reckless contact – Black for his run-in with Scott McLaren at the Gabba on Friday night, and Thomas for an altercation with Jason Armstrong at the MCG on Saturday.
As was the case with Magpie Heath Shaw last week, the two players have no choice but to front the tribunal for determination on the charges.
Shaw received a one-week suspension and a $1950 fine after pleading guilty to intentional contact with umpire Michael Vozzo in round three.
Western Bulldog Jason Akermanis will have to join Black and Thomas at Tuesday night's tribunal and overcome a tripping charge if he is to face Carlton this Sunday at Docklands.
Akermanis has been charged with tripping West Coast's Mark Nicoski, and owing to existing carry-over points from the past year, has had his reprimand increased to a one-match sanction.
Even if the Brownlow medallist makes an early guilty plea, his demerit points will decrease to 112.73, meaning he will still miss a week.
Fremantle's Byron Schammer, St Kilda's Leigh Montagna and West Coast's Will Schofield can all accept reprimands with early pleas for their actions on the weekend.
Schammer has been charged with making forceful front-on contact against St Kilda's Farren Ray. His five-year good record means he can accept a reprimand and 70.31 points towards his future record.
Montagna has been cited for striking Fremantle's Paul Hasleby during the fourth term of Saturday's game.
Also with a good five-year record, Montagna can accept the same punishment as Schammer if he accepts an early guilty plea.
Schofield joins Akermanis as another player charged with tripping from the weekend for his actions against Western Bulldog Ryan Griffen on Sunday.
The Eagle can accept a reprimand and 60 points towards his future record with early admittance.
Meanwhile, Melbourne's Matthew Warnock, Essendon's David Hille and the Western Bulldogs' Liam Picken can all breath a sigh of relief after their individual incidents were reviewed and deemed legal.
Young Demon Nathan Jones has also been cleared for making contact with umpire Stuart Wenn, with the match review panel deciding contact was accidental as Wenn was "backing away from the contest, to be able to adjudicate, while Jones was moving towards the play on a different angle".
Earlier on Monday, the AFL said it would take no further action towards umpire McLaren for the incident involving Collingwood's Shane O'Bree at the Gabba.
