It's all about injuries and opportunity this week at North Melbourne in the lead up to the must-win clash with Sydney.

Jack Ziebell's broken leg opens up a spot in the senior side with Drew Petrie and Nathan Grima looking to return from a stint on the sidelines.

Strong performances from Robbie Tarrant, Aaron Edwards, Leigh Harding and Corey Jones in the VFL will also make it tough for Brad Scott at the selection table.

David Hale, Josh Smith and Gavin Urquhart will also be hoping for a call-up.

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.

Drew Petrie - player profiles
Last week: Injured

Nathan Grima - player profiles
Last week: Injured
Two weeks ago: 19 possessions, 6 marks (AFL)
Three weeks ago: 18 possessions, 7 marks (AFL)

Robbie Tarrant - player profiles
Last week: 20 possessions, 4 marks, 3 tackles (VFL)
Two weeks ago: 19 possessions, 6 marks (VFL)
Three weeks ago: Bye (VFL)

David Hale - player profiles
Last week: 19 possessions, 9 marks, 15 hit-outs (VFL)
Two weeks ago: 17 possessions, 5 marks, 26 hit-outs, 4 tackles, 2 goals (VFL)
Three weeks ago: (VFL)

Alan Obst - player profile
Last week: 15 possessions, 6 marks, 1 goal (VFL)
Two weeks ago: 12 possessions, 2 goals, 13 hit-outs (VFL)
Three weeks ago: Bye (VFL)

Corey Jones - player profile
Last week: 24 possessions, 6 tackles, 5 goals (VFL)
Two weeks ago: 25 possessions, 6 marks, 6 tackles, 3 goals (VFL)
Three weeks ago: (VFL)

Aaron Edwards - player profile
Last week: 19 possessions, 10 marks, 7 goals (VFL)
Two weeks ago: 16 possessions, 4 marks, 3 goals (VFL)
Three weeks ago: Bye (VFL)

Nathan O'Keefe - player profile
Last week: 12 possessions, 4 marks, 5 tackles, 1 goal (VFL)
Two weeks ago: rested
Three weeks ago: 13 possessions (VFL)

Josh Smith - player profile
Last week: 26 possessions, 15 marks, 3 spoils (VFL)
Two weeks ago: rested
Three weeks ago: 15 possessions, 5 marks, 4 goals (VFL)

Leigh Harding - player profile
Last week: 31 possessions, 10 marks, 10 tackles, 9 inside 50's (VF)
Two weeks ago: 26 possessions, 4 marks (VFL)
Three weeks ago: Bye (VFL)

Ben Speight - player profile
Last week: 16 possessions, 4 behinds (VFL)
Two weeks ago: 22 possessions, 2 tackles, 3 marks (VFL)
Three weeks ago: Bye (VFL)

Jamie MacMillan - player profile
Last week: 14 possessions, 3 marks, 3 tackles (VFL)
Two weeks ago: rested
Three weeks ago: 15 possessions, 7 marks (VFL)

Gavin Urquhart - player profiles
Last week: 15 possessions (VFL)
Two weeks ago: 14 possessions, 2 marks (AFL)

Luke Delaney - player profile
Last week: 9 possessions, 5 spoils (VFL)
Two weeks ago: injured

VFL Reports:
"Robbie Tarrant on the rise" - Werribee report
"Edwards silences Magpies" - North Ballarat report