Geelong's Georgie Prespakis and Essendon's Daria Bannister have had their bans upheld by the AFLW tribunal after a pair of lengthy hearings.

Prespakis was handed a two-match ban for a dangerous tackle on St Kilda ruck Erin McKinnon, dealt out during Geelong's 50-point win on Thursday.

The incident was graded as careless conduct, high contact, and high impact, with the Geelong legal team hoping to get the grading down to low. McKinnon, who has played all five games for the Saints so far this season, suffered a concussion in the incident and is expected to miss up to three games

The tribunal deliberated for more than an hour, eventually deciding that Prespakis' tackle was "unreasonable in the circumstances".

The young gun will now miss the Cats' upcoming clashes against the Western Bulldogs and Essendon.

Earlier, Essendon forward Bannister failed to have her one-match ban for a dangerous tackle on Pie Steph Chiocci overturned. The 23-year-old will now miss her side's Round 6 clash against Brisbane.