Match review officer Michael Christian graded the incident as careless conduct with low impact and high contact, which equalled a fine for the big American.
The match review of last night's Collingwood/Western Bulldogs match has been completed.
One charge laid. No other matters required a detailed explanation.
Mason Cox can accept $2000 sanction, front-on conduct against Jason Johannissen (careless conduct/low impact/high contact).
— Patrick Keane (@AFL_PKeane) May 26, 2018
Cox will now be free to face Fremantle at the MCG next Sunday.
— AFL (@AFL) May 25, 2018