The Match Review Officer (MRO) has found both Port Adelaide's Zak Butters and North Melbourne's Kallan Dawson guilty of striking, handing down one-match suspensions.

In Sunday's clash with Collingwood, Dawson can be seen lifting his elbow after Jack Crisp disposes of the ball, making contact with the Pies speedster's face.

The MRO graded the incident as careless conduct, medium impact and high contact, constituting a one-match ban.

If Dawson and the Kangaroos opt not to challenge, he will miss the Round 15 clash against Melbourne.

Power midfielder and Brownlow fancy Butters also faced the same fate for his strike on GWS' Tom Green in the following match.

The no.18 can be seen swinging his right arm toward Green, ricocheting off his arm and making contact with his face.

The MRO graded the contact as intentional conduct, low impact, and high contact, resulting in a week off.

According to 9 News' Tom Morris, Port Adelaide and Butters have chosen to contest the suspension. If the ban is upheld, the midfielder will be ineligible for the Brownlow and will miss the match against Brisbane this week.

The Power's troubles don't end there, with key forward Charlie Dixon handed a three-game suspension for his bump in the SANFL over the weekend.

Other findings from the Port Adelaide-GWS clash saw ruckman Ivan Soldo and defender Connor Idun slapped with $3,750 fines ($2,500 early plea).