Warriors hooker Jazz Tevega.

Young hooker Nathaniel Roache has been ruled out of the Warriors' Round 24 NRL Telstra Premiership clash with South Sydney at ANZ Stadium on Friday.

The 21-year-old went down with a leg injury during the team's field session ahead of departing for Sydney this afternoon. The full extent of the injury is yet to be confirmed.

Roache was set to make his third appearance after returning from a hamstring injury he picked up against Manly in Perth on July 1.

Jazz Tevaga has now been named at hooker in the Warriors' provisional 21-man squad but Issac Luke, who is currently named on the bench, is a chance of taking the starting spot against his former club come game day.

Warriors

1 Roger Tuivasa-Sheck (C)
2 David Fusitua
3 Blake Ayshford
4 Solomone Kata
5 Ken Maumalo
6 Kieran Foran
7 Mafoa'aeata Hingano
8 Jacob Lillyman
23 Jazz Tevaga
10 Samuel Lisone
11 Bunty Afoa
12 Ryan Hoffman
13 Simon Mannering
Interchange:
14 Issac Luke
15 Tevita Satae
16 Isaiah Papali'i
17 Charlie Gubb
Reserves:
18 Mason Lino
20 Toafofoa Sipley
21 James Bell
22 Charnze Nicoll-Klokstad