West Harbour and Southern Districts both must win this weekend to keep their finals hopes alive while the six teams ahead of them will be equally as desperate to get the chocolates with just three regular season matches remaining. Check out all the changes ahead of round 16 this weekend. Gordon v Manly Gordon (1-15) Leigh Hughes, Andrew Seton, Tobias Gukibau, Jack Margin, Caleb Aperahama, Jack Maguire, Luke Gardner, Lachlan Cannell, Jack Blakeney Edwards, Sam Leeming, Kim Bateman, Erik Moss, Alex Gregory, Matt McDougall, Tom Carruthers. Manly (1-15) Mokani Fuavao, Scott White, Conor Davidson, Brad Hemopo, Adrian Hall, Samuel Shires, Morgyn Cowan, Harry Bergelin, Tim Donlan, Sam Lane, Mick Adams, Nicolas Holton, Josh Turner, Rob Buaserau, Brenden Hartmann. Southern Districts v Sydney University  Southern Districts (1-15) Matt Gibbon, Duncan Chubb, Shambeckler Vui, Angus Ryan, Jake Douglas, Alex Perez, Conor Mitchell, Marcus Carbone, Waldo Wessels, Rohan Saifo