Brad Scott will be sweating on the fitness of several key players as his team prepares to take on Fremantle.

It's a must-win game for the Kangaroos, and a collarbone injury to Ed Lower means there's at least one change on the cards.

kangaroos.com.au details the form of those close to a call-up and as always, you can have your say on this week's ins and outs in the comments section below.

Nathan Grima
Last week: Did not play (injured)
A fortnight ago: Did not play (injured)
Three weeks ago: 24 possessions, 10 marks (AFL)

Daniel Wells
Last week: Did not play (injured)
A fortnight ago: Did not play (injured)
Three weeks ago: 26 possessions, 1 goal (AFL)

Cruize Garlett
Last week: Did not play (injured)
A fortnight ago: Did not play (injured)
Three weeks ago: Did not play (injured)

Daniel Pratt
Last week: Did not play (injured)
A fortnight ago: Did not play (injured)
Three weeks ago: 15 possessions, 1 goal (AFL)

Gavin Urquhart
Last week: Did not play (injured)
A fortnight ago: 10 possessions (AFL)
Three weeks ago: 20 possessions, 5 tackles (AFL)

Matt Campbell
Last week: Did not play (injured)
A fortnight ago: 5 possessions, 6 tackles (AFL)
Three weeks ago: 13 possessions, 2 goals (AFL)

Ben Warren
Last week: Did not play (injured)
A fortnight ago: 15 possessions, 3 goals (AFL)
Three weeks ago: 14 possessions, 1 goal (AFL)

Brayden Norris
Last week: 18 possessions, 5 tackles (VFL)
A fortnight ago: 22 possessions (VFL)
Three weeks ago: 8 possessions, 1 goal (VFL)

Corey Jones
Last week: 30 possessions, 3 goals (VFL)
A fortnight ago: 13 possessions, 3 goals (VFL)
Three weeks ago: 12 possessions, 1 goal - 42% game time (VFL)

Nathan O'Keefe
Last week: 15 possessions, 6 marks (VFL)
A fortnight ago: 21 possessions, 4 goals (VFL reserves)
Three weeks ago: 4 possessions, 2 tackles (VFL)

David Hale
Last week: 15 possessions, 37 hit-outs (VFL)
A fortnight ago: 4 possessions, 3 marks (AFL)
18 possessions, 31 hit-outs (VFL)
Three weeks ago: 5 possessions, 10 hit-outs - 28% game time (VFL)