Richmond will fight a rough conduct charge against small forward Jake King, after accusing Adelaide of alerting the AFL to the incident.

King will miss the opening round of next season unless he is successful at the AFL Tribunal on Tuesday night when he contests the charge of rough conduct against the Crows' Andy Otten.

The charge, which came with a two-match suspension, was not part of those initially laid by the match review panel on Monday.

The Tigers said it was a complaint from the Crows that caused the panel to belatedly consider the incident.

"The charge was not laid as part of the original match review panel findings, and was brought to the AFL's attention by the Adelaide Crows last night," Richmond said on their website on Tuesday.

King's poor prior record, including five matches suspended within the past three years, severely compounded the penalty, as he could otherwise have escaped with a reprimand.

King will be the only tribunal case, with Collingwood midfield star Dale Thomas to miss the opening weekend of the AFL finals, as one of five players to submit guilty pleas.

Thomas's two-game ban means he will miss Friday night's blockbuster against Geelong and more significantly the Magpies' qualifying final against West Coast the following weekend.

He would have risked a three-match suspension had he fought the charge of rough conduct against Fremantle's Garrick Ibbotson.

The season is over for North Melbourne's Jack Ziebell and Levi Greenwood, with Ziebell to also miss the opening two rounds of 2012.

He accepted a three-match ban for making forceful front-on contact on St Kilda captain Nick Riewoldt at Etihad Stadium on Saturday night, with Greenwood out for one game for a similar offence against David Armitage.

Armitage will miss this weekend's meeting with Carlton, but be available for finals, after pleading guilty to rough conduct against the Kangaroos' Leigh Adams.

Fremantle's Nick Lower was suspended for three games, which will mean missing the opening two rounds next season, for forceful front-on contact against Collingwood's Thomas.

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