The New South Wales side held on for a 24-21 victory in Sydney on Saturday night, handing the Crusaders their second defeat in three matches.
Trailing 14-0 after just 12 minutes, and 17-0 at halftime, the visitors rallied in the second half to close the gap to only three points going into the final quarter.
However a red card to Crusaders lock Hamish Dalzell for a high tackle on Wallabies captain Michael Hooper in the 68th minute gave the home side a one-man advantage.
