IT'S defenders week at Carlton Media, as we look at every member of the back line leading into 2020. 

In the lead-up to the return of pre-season games, we'll be tracking who's impressing at Ikon Park across each line. 

Here's every single member of the Carlton defensive group ahead of the upcoming season.

The experienced heads

No.6 — Kade Simpson
Age: 35
Height: 183cm Weight: 75kg
Games played: 325

No.14 — Liam Jones
Age: 28
Height: 199cm  Weight: 97kg
AFL games played: 125
Carlton games played: 59

No.15 — Sam Docherty
Age: 26
Height: 187cm  Weight: 87kg
AFL games played: 92
Carlton games played: 79

No.24 — Nic Newman
Age: 27
Height: 187cm  Weight: 83kg
AFL games played: 51
Carlton games played: 20

No.32 — Jack Newnes
Age: 26
Height: 186cm  Weight: 82kg
AFL games played: 155
Other positions: Midfield 

No.41 — Levi Casboult
Age: 29
Height: 201cm  Weight: 101kg
Games played: 124
Other positions: Forward, ruck

The emerging crop

No.5 — Sam Petrevski-Seton
Age: 21
Height: 182cm Weight: 78kg
Games played: 64
Other positions: Midfield

No.20 - Lachie Plowman
Age: 25
Height: 193cm  Weight: 90kg
AFL games played: 94
Carlton games played: 74

No.22 — Caleb Marchbank
Age: 23
Height: 193cm  Weight: 93kg
AFL games played: 48
Carlton games played: 41

No.23 — Jacob Weitering
Age: 22
Height: 196cm  Weight: 98kg
Games played: 76

No.45 — Hugh Goddard
Age: 23
Height: 198cm  Weight: 94kg
AFL games played: 12
Carlton games played: 2

The next generation

No.13 — Liam Stocker
Age: 19
Height: 184cm  Weight: 83kg
Games played: 5
Other positions: Midfield

No.26 — Harrison Macreadie
Age: 21
Height: 198cm  Weight: 92kg
Games played: Nine

No.31 — Tom Williamson
Age: 21
Height: 190cm  Weight: 85kg
Games played: 17

No.37 — Ben Silvagni
Age: 19
Height: 196cm  Weight: 87kg
Games played: Yet to debut

No.46 — Matthew Cottrell
Age: 19
Height: 181cm  Weight: 72kg
Games played: Yet to debut