Conversation so far:
what happened in 2006?
Andrew Johns broke one of the longest-standing records in Round 2 of the 2006 season as he amassed 30 points against the Canberra Raiders.
did he win any awards?
honoured as an immortal of the game.
what sport did he play?
rugby.
what was his best game?
Round 2 of the 2006 season as he amassed 30 points against the Canberra Raiders.

Question: what was his greatest accomplishment?
Self-contained rewrite: what was Andrew Johns' greatest accomplishment?