Asack will be eligible to return to Duke in the summer of 2007.
"Sometimes great young men make poor decisions and that is that is the case in this situation," Roof said. "While I certainly don't condone his actions, I have been impressed with the manner in which Zack has handled this issue. I fully support Zack and am confident that he will grow in many areas as a result of this situation. When you are part of a family and make an uncharacteristic mistake, you are not kicked out of the family. Zack will remain part of the Duke football family and will be supported by everyone in our program."
Asack earned honorable mention Freshman All-America honors from The Sporting News in 2005 after starting six of the final seven games and leading Duke in passing yards (966). The Westwood, Mass., native completed 90-of-180 pass attempts with five touchdowns and eight interceptions and ranked seventh nationally among rookie quarterbacks in passing yardage. Asack, who rushed for an additional 95 yards and two touchdowns and became the first true freshman to start at quarterback for Duke since Steve Slayden in 1984, threw for a season-best 328 yards at Clemson in week 10.
In addition, Roof announced that wide receiver Deon Adams, safety Andreas Platt and offensive lineman Joe Suder have been dismissed from the program for violation of team regulations. Adams, a native of Greensboro, N.C., played in 27 career games with 12 pass receptions for 125 yards while Platt, also a Greensboro product, saw action in 11 contests and recorded 15 tackles. Suder, a native of Reno, Nev., did not see game action as a true freshman in 2005.
Duke opens the 2006 season at home versus Richmond on September 2 at 6 p.m.