Iowa will open the 2018 season with a few less linemen on its Week 1 roster.

Wednesday, Iowa announced that offensive tackle Alaric Jackson and defensive lineman Cedrick Lattimore will miss the season opener against Northern Illinois for “violating team policy and rules.”

The suspensions do not involve any legal issues, according to Iowa’s prepared statement.

“As a coach one of the most important decisions is to hold student-athletes accountable,” head coach Kirk Ferentz said in a statement. “It is painful for the players and the team to impose a suspension, but we have high standards and there is an expectation all players abide by our rules.”

The Hawkeyes will now be without four players for the Sept. 1 matchup against Northern Illinois. Defensive lineman Brady Reiff and offensive lineman Tristan Wirfs were both given one-game suspensions for alcohol-related offenses.