Mitchell appeared to knee GWS midfielder Ryan Griffin off the ball, which left Griffin limping.
Watch the vision at HeraldSun.com.au
AFL 360’s Mark Robinson said last night that the act is not acceptable.
“It’s not good when he does it twice, but another club has complained this year and that makes it three times,” Robinson said.
“I think Sam Mitchell is a champion footballer, but he just has to stop doing this.
“Seeing the Ryan Griffen one, that was as bad and as powerful as the Tex Walker one.
“Sorry Sam, but this is not about technique. After three times, I’m starting to believe that you’re deliberately doing that to the opposition.
“It’s not a protection mechanism, it’s about hurting the opposition and it absolutely has to stop.”
Watch the incident with Nat Fyfe below: