Tigers DH Gary Sheffield is out of the team's lineup indefinitely because of a nagging right shoulder injury, according to a report Wednesday on the Detroit Free Press web site. Sheffield injured the shoulder in a collision with second baseman Placido Polanco last month. The 38-year-old slugger did not play from August 2-7 to rest the injury, but has just one home run and four RBI in 13 games since that layoff.