Ganmain Grong Grong Matong Lions, who comfortably beat Osborne in a practice match, will return to Ostrich Park with a crucial four points up for grabs.

Both teams could stitch up a finals spot with a win in the six-match shortened season that does not allow much margin for error.

The Lions suffered a cruel defeat last Saturday when Wagga Tigers goaled in the final minute to snatch a one-point victory at Ganmain.

While Osborne, after a surprise first-round win over Wagga, was beaten by MCU at Mangoplah to leave both sides with a win and a loss.

A big concern for Osborne will be the fitness of coach Joel Mackie who suffered a hamstring injury early in last week's game that restricted him to a forward role.

Osborne big man and 2018 Azzi Medal winner, Jamie Parr, is yet to play after missing most of the 2019 season following a knee reconstruction and could be a chance to return.

Skipper Duncan McMaster and midfielder Nick Perryman have been in great form for Osborne, while Elliot Powell should be better for a run last week.

GGGM have plenty of depth at their disposal and former Hume Football League star at Holbrook Curtis Steele will be in line for a recall to the seniors.

Ex-Collingwood AFL star Sam Murray showed plenty early last week for the Lions before cramp and lack of match practice curtailed his second half.

Lions star centre half-forward Nick Murray and his clash with McMaster could well go a long way to deciding the outcome.

GGGM suffered a huge blow last week when star forward Riley Corbett suffered a severe ankle injury that looks to have ended his season.

Leeton-Whitton is the only unbeaten team in the competition but will be tested to stay that way with a trip to Robertson Oval to face Wagga Tigers.

The final match will be winless Turvey Park taking on MCU Eastlakes at Maher Oval, with former Jindera century goalkicker Trent Castles debuting for MCU.