Oatlands and Triabunna will play in the first cut-throat semi-final at 11.30am.

Oatlands has struggled against higher-placed sides in the second half of the year, but is back to full strength with the return of key players including Michael Thompson and Lincoln Ross.

Coach Josh Kelly has reinvigorated the side this season and with the prospect of a home preliminary final next week the Tigers are keen to go deep into September.

Ryan Sweet's Triabunna is an exciting side to watch, and with the Roos playing their first final since 2005 there is momentum in their favour.

Forwards Tom Pyke and Dylan Russell have been in solid form while Tim, Simon and James Dudgeon and Kurt Flynn will return.

Top sides Mt Pleasant and Campania go head to head in a highly anticipated second semi-final at 2pm.

The Wallabies upset the Mounties for the first time last week, however the home ground advantage could swing the pendulum in the Mounties' favour having not lost at their fortress all year.

Triple flag coach Nathan Barwick has led his team to six finals' series in six seasons and will call on big efforts from form duo Joel Hazelwood and Logan Bailey.

Campania coach Nathan Senior will enjoy the return of Aaron Fitzpatrick, while association best and fairest Matthew Triffett and leading goalkicker Clinton Curtain have the potential to win the game off their own boots.