Ryan Hudson, Bradford's new signing who is the subject of a doping investigation, is taking legal advice after being suspended by his new club.
The 25-year-old hooker or loose forward has been suspended indefinitely pending further enquiries by the Bulls.
The England A player has now placed the matter into the hands of Leeds-based solicitor Richard Cramer.
Hudson joined 2003 Super League champions Bradford in October after leaving relegated Castleford.
The Rugby Football League revealed last week that Hudson faced a doping investigation.
The Bulls have not commented on the doping allegation but said they had suspended the player for disciplinary reasons.
Bulls chairman Chris Caisley said: "Our enquiries into the matter in question are still ongoing and therefore there will be no further announcement by the club at this stage."
The matter comes just weeks after Caisley criticised the RFL for its handling of the recent drugs cases involving Leeds pair Keith Senior and Ryan Bailey.
Senior and Bailey were each fined £1,500 in December after testing positive for the banned stimulant ephedrine.
Bradford start their Super League campaign with a home clash against Wakefield on 13 February.