Robbie O'Davis got suspended remeber? I got the below from Wikipedia
The following season, Knights players Robbie O'Davis, Wayne Richards and Adam MacDougall tested positive for performance-enhancing drugs; however, all three maintained they started use after the Knights' 1997 victory. The three were suspended, despite O'Davis' claims the club was not notified his drug was banned until after his positive test, and MacDougall's medical reason for taking the steroids (his usage continued after he completed his suspension, now approved by the NRL). In addition, the Knights terminated Wayne Richards' contract.
The following season, Knights players Robbie O'Davis, Wayne Richards and Adam MacDougall tested positive for performance-enhancing drugs; however, all three maintained they started use after the Knights' 1997 victory. The three were suspended, despite O'Davis' claims the club was not notified his drug was banned until after his positive test, and MacDougall's medical reason for taking the steroids (his usage continued after he completed his suspension, now approved by the NRL). In addition, the Knights terminated Wayne Richards' contract.