HAWTHORN has been forced into a late change for one of footy's great modern rivalries against the high-flying Swans at the SCG.
Ned Reeves has been unable to prove his fitness in time after rolling his ankle during the captain's run on Thursday.
Jonathon Ceglar will replace the young ruckman. Sydney is unchanged.
From tight tussles to stars switching sides, these two clubs have a provided many memorable moments over the years.
SWANS v HAWKS Full match coverage and stats
Currently, the Swans have the upper hand, sitting at sixth on the ladder with an 8-4 record, while the Hawks are struggling to get off the ground this season, sitting at 17th on the ladder with a 2-9 record.
The Hawks will be looking to snap a five-game losing streak, while the Swans are fresh off a win against the Saints last week.
Star midfielder Jaeger O'Meara returns after suffering a concussion, while young gun Will Day is also back for the Hawks.
Hawthorn's mid-season draftee Jai Newcombe will make his debut after being drafted just last week.
The Swans will be without young star Chad Warner, with last week's injury sub James Bell named as his replacement.
Sydney v Hawthorn at the SCG, 7.50pm AEST
Hawthorn: Ned Reeves replaced in selected side by Jonathon Ceglar
Sydney: Lewis Taylor
Hawthorn: Josh Morris
Tickets for the Big Freeze in Sydney match are on sale now. Get your tickets HERE. The famous blue Big Freeze beanies are still available from Coles, Coles Express, Bunnings or fightmnd.org.au, while donations can be made at fightmnd.org.au.