ESPN first reported the news.
The NFL declined comment on the issue.
Per the NFL policy: "Any public or private statement of interest, qualified or unqualified, in another club's player to that player's agent or representative, or to a member of the news media, is a violation of the Anti-Tampering Policy."
Johnson later said he "misspoke" when commenting on Revis, insisting he would never interfere with a player contract from another team and called Pats owner Robert Kraft directly afterward to stress he wasn't tampering.
Bill Belichick, however, chimed in on the issue during a radio interview saying that he "would think that the league would look into those comments."
They indeed are doing just that.