Richie Incognito's role in harassing teammate Jonathan Martin is under review by the NFLPA.

One high-ranking Miami Dolphins official who did not want to be identified defended Incognito as a player who has been a "model citizen" and was mystified by any allegations related to Incognito.

Several sources insisted Incognito was involved, adding that the incident was not isolated and extended to 2012 when Martin was a second-round draft pick by the Dolphins. One source said any emotional issues that Martin is experiencing are directly related to his harassment.