The Raiders offered Hudson Young $1.1m annually to deter interest from the PNG Chiefs before his contract ends next season.
The Raiders have tabled a $1.1m a year contract for Hudson Young - the richest offer in Canberra's 44-year history.
The remarkable offer is Canberra's attempt to thwart increasing interest in Young from the cashed-up PNG Chiefs.
Should Young reject Canberra's bid, the Raiders may give him a small window to negotiate with the Chiefs before November 1.
The Raiders are desperate to retain the NSW and Kangaroos edge forward but know their offer could be dwarfed by PNG.
Young comes off contract at the end of next season.