Interested teams have been in close contact with Adams, and they are impressed that he already has completed counseling.
Brooks: Bust potential
Adams' representatives weren't immediately available Thursday for comment.
The positive test result will make Adams a moderate risk and could result in him sliding to the second round, but other players in the same situation in years past still have ended up in the first round. Adams has told people he was unaware of the positive result at the time of combine interviews, which is why he did not tell teams then.
Since then, Adams has been forthright, and league sources said he is viewed as a "good kid" who obviously made a mistake. The key for Adams will be learning from it. Several teams said they were impressed by Adams during interviews with him.
Several teams picking late in the first round and early in the second round are in the market for offensive linemen in this draft. Some teams that like Adams might be able to trade down and still get him.
Falling into the second round could cost players about $300,000 per year. On the positive side, second-round deals are for four years and not five, so players could get their next contract sooner.