SYDNEY star Isaac Heeney has copped a one-match ban for his hit on St Kilda's Jimmy Webster, meaning he will be ineligible for this year's Brownlow Medal unless the Swans successfully appeal the decision at the Tribunal.

Adelaide's Izak Rankine is also set for a stint on the sidelines after copping a four-week suspension for an off-the-ball incident that saw Brisbane's Brandon Starcevich subbed out of Sunday evening's game at the Gabba.

Both clubs have confirmed they will challenge the bans at the Tribunal on Tuesday night, with Heeney's case to start proceedings at 6.30pm AEST. AFL.com.au will provide live text coverage of the Heeney case.

Heeney has been cited by the Match Review Officer for an incident in the third quarter at Marvel Stadium on Sunday, when the Swan attempted to push off Webster in a marking contest and struck the Saints defender high, drawing blood.

The MRO has graded the incident intentional, high contact and low impact, which has triggered a one-match ban. The Swans have until Tuesday to decide if they will appeal the ban at the Tribunal.

Heeney has enjoyed a stunning season to date and is the equal leader on AFL.com.au's Brownlow Predictor, which correctly tipped Lachie Neale to win the award last year, after 17 rounds.

BROWNLOW PREDICTOR Check out all the votes

Sydney will face North Melbourne at the SCG on Saturday before a trip to the Gabba to face Brisbane.

Rankine's bump on Starcevich has been graded intentional, high contact and severe impact by the MRO, which has triggered a four-game ban.

The Crows will host the Saints this week before games against Essendon, Hawthorn and Geelong.

"While Izak had no intention of making head high contact that resulted in the injury, it obviously did occur and that is not being contested," Crows head of football Adam Kelly said in confirming the club will appeal the ban.

"We believe however that a careless grading is more befitting of the incident."