Chapman was charged with intentionally striking Picken during the first quarter of the victory over the Bulldogs.
The match review panel qualified the incident as a level-two striking offence, drawing 125 demerit points and a one-week ban. However, Chapman can take a reprimand and 93.75 carry-over points if he lodges an early guilty plea.
Picken faces exactly the same scenario after he was charged with recklessly striking Joel Selwood with a swinging arm to the head during the second quarter.
Although the contact was noted as high by the panel, it was found to be low impact, despite the fact Selwood looked dazed as he struggled to his feet after the collision.
There was better news for St Kilda midfielder Jason Gram, with his match-day report for high contact on North Melbourne’s Cruize Garlett thrown out.
Fremantle ruckman Zac Clarke’s rough conduct report, stemming from the incident in which Sydney Swans forward Ben McGlynn suffered a broken cheekbone, has also been dismissed.
The match review panel found that when McGlynn lunged forward to take the ball, contact was made by Clarke’s leg but ruled his actions were not reportable because he was seeking to win the ball.
West Coast youngster Koby Stevens faces a one-game ban for making forceful front-on contact with Port Adelaide’s Danny Meyer. Again, an early guilty plea from Stevens will allow him to take a reprimand and 93.75 points.
St Kilda midfielder Lenny Hayes faces a fine of $1200 for making negligent contact with an umpire during the Saints’ big win over North Melbourne. Hayes can have the fine reduced to $900 if he lodges an early guilty plea.
Contact between North Melbourne’s Ben Warren and St Kilda’s Sean Dempster was also assessed.
The panel acknowledged Warren had placed a block on the St Kilda player and contacted him high, but the action was not seen as a reportable offence.