St Kilda's cleanskin captain Nick Riewoldt is facing the first suspension of his AFL career.

The Saints skipper has been offered a one-match ban by the match review panel if he lodges an early guilty plea to a charge of rough conduct.

The five-time club champion clashed with Adelaide's Brad Symes during the first quarter of Friday night's game at Etihad Stadium.

The panel ruled the offence was worthy of a level-three charge.

However 213-game veteran Riewoldt's five-year good record reduces the penalty from three matches and 325 demerit points to one game and 182.81 points with an early plea.

Symes left the field holding his jaw and returned briefly before being subbed off.

The Saints have clawed their way back into eighth spot and play the 16th-placed Suns at the Gold Coast on Saturday night.

Fremantle's Luke McPharlin can accept a one-game ban for striking West Coast forward Josh Kennedy during the fourth quarter of Sunday's derby in Perth.

Due to a previous poor record at the tribunal, the Dockers defender's reprimand has been increased to a one-match ban.

McPharlin's offence drew a reprimand and 80 demerit points, although he also has 70.31 demerit points carried over from within the past 12 months.

His penalty of 150.31 points and a one-match ban can be reduced by 25 per cent to 112.73 points with an early plea.

Seventh-placed Fremantle face a tough encounter against third-placed Hawthorn in Perth on Saturday night.

A match-day report against North Melbourne's Michael Firrito for striking Brisbane's Simon Black has been thrown out.

Brisbane's Jed Adcock can accept a reprimand and 70.31 points towards his record for making forceful front-on contact with North Melbourne's Levi Greenwood during Saturday's game at Etihad Stadium.

North's Leigh Adams and Brisbane's Pearce Hanley can accept $900 sanctions for making negligent contact with an umpire.

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