Jerome Harrison, who rushed for 561 yards in the final three games of last season, has been participating in organized team activities this week despite not signing his one-year tender yet. Harrison was absent on Thursday, the one day of the week open to the media, but was here the first two days of the session. Eric Mangini said Harrison's absence was unrelated to his contract situation. Mangini said Harrison is the only unrestricted free agent participating. The absentees are Matt Roth, D'Qwell Jackson, Lawrence Vickers and Abe Elam. "I think it's good for everyone to be here because it's the second round of install and it helps the player and it helps us for when we go to camp,'' said Mangini. "I'm glad Jerome is here and I expect him to be here next week.''