The Twins will not head into the regular season with their first-choice roster in place.

Manager Rocco Baldelli announced Wednesday that righthander Jake Odorizzi, slated to be the No. 2 starter in the rotation, will begin the season on the injured list because of upper back soreness. Odorizzi was scratched from his outing Monday because of the injury, and has not recovered sufficiently for him to take the ball Saturday against the White Sox.

So the Twins will start, in order, righthander Jose Berrios, lefthander Rich Hill and righthander Kenta Maeda in the three games against Chicago.