PORT Adelaide's clash with Essendon at the Adelaide Oval will kick-start the final round of home and away games, after the AFL released the round 23 fixture on Monday.

As reported by AFL.com.au last week, Sydney's potentially pivotal clash with Hawthorn missed the prime-time slot and will be played at the SCG on Saturday night.

Melbourne and GWS will meet in a crucial encounter at the MCG on Sunday afternoon, with North Melbourne's finals hopes perhaps hinging on the result of that game.

The Kangaroos will play the Saints just after that match in Sunday's twilight game.

Geelong takes on Gold Coast in Saturday's early fixture in another match that could have finals ramifications, while ladder leaders Richmond will also play on Saturday afternoon.

Collingwood's top four hopes may be decided against Fremantle at Optus Stadium in a clash that has been scheduled for Saturday's twilight spot.

Carlton hosts Adelaide at Etihad Stadium on Saturday night, while Brisbane meets West Coast at the Gabba in Sunday's early game.

Round 23 fixture (all times local)

Friday 24 August

Port Adelaide v Essendon at the Adelaide Oval (7.20pm ACST)

Saturday 25 August

Geelong v Gold Coast at GMHBA Stadium (1.45pm AEST)

Richmond v Western Bulldogs at the MCG (2.10pm AEST)

Fremantle v Collingwood at Optus Stadium (2.35pm AWST)

Sydney v Hawthorn at the SCG (7.25pm AEST)

Carlton v Adelaide at Etihad Stadium (7.25pm AEST)

Sunday 26 August

Brisbane v West Coast at the Gabba (1.10pm AEST)

Melbourne v Greater Western Sydney at the MCG (3.20pm AEST)

St Kilda v North Melbourne at Etihad Stadium (4.40pm AEST)