Damian McKenzie would have been the first choice, but was a late scratch due to an ankle knock, his brother Marty will also miss the start of the season with a hip injury, Falcon is out for the season with an Achilles injury, and Debreczeni has an abdominal strain.
An otherwise vastly experienced line-up includes returning All Blacks Nathan Harris, Brodie Retallick, Anton Leinert-Brown, Te Toiroa Tahuriorangi and Angus Ta'avao.
In naming the side, head coach Colin Cooper touched on the privilege of playing for the Chiefs jersey for the young men.
"It will be a proud moment for our debutants when they run out with the team on Friday," Cooper said. "It is a privilege to wear the Chiefs jersey and as a team we want to demonstrate to our whanau and supporters how proud we are to represent our region and club."
Chiefs team:
1. Atu Moli (29)
2. Nathan Harris (44)
3. Angus Ta'avao (17)
4. Brodie Retallick (98) ©
5. Michael Allardice (34)
6. Mitchell Brown (21)
7. Lachlan Boshier (30)
8. Tyler Ardron (10)
9. Brad Weber (57)
10. Orbyn Leger*
11. Etene Nanai-Seturo**
12. Anton Lienert-Brown (55)
13. Tumua Manu*
14. Bailyn Sullivan (1)
15. Shaun Stevenson (33)
Reserves:
16. Samisoni Taukei'aho (9)
17. Aidan Ross (13)
18. Nepo Laulala (17)
19. Taleni Seu (34)
20. Jesse Parete (9)
21. Te Toiroa Tahuriorangi (17)
22. Stephen Donald (104)
23. Ataata Moeakiola**
* Chiefs debut
** Super Rugby debut