Detroit Lions center Cade Mays is expected to miss eight to 10 weeks after suffering a wrist injury during training camp, dealing a significant setback to a player the team signed in free agency to anchor its revamped offensive line. Lions head coach Dan Campbell described the injury as significant but said the team expects Mays to return during the season. The Lions open the regular season Sept. 13 against the New Orleans Saints, giving Mays roughly a month before the opener if the projected recovery timetable holds.