Havenstein (ankle) was a limited participant in the Rams' practice Monday, Stu Jackson of the Rams' official site reports.
Havenstein is making progress towards working his way back from an ankle injury suffered last month but is still not fully healthy. The 32-year-old's status for Sunday night's game versus the Lions is still up in the air, and if he ends up being unable to play, Warren McClendon will likely start at right tackle. This would leave the team without both starting tackles, as Alaric Jackson is suspended for the first two games of the season.