The Rams placed Noteboom (ankle) on injured reserve Wednesday.

Noteboom's earliest possible return date will be Oct. 20 versus the Raiders, given that he'll have to miss at least the next four games while on IR. In addition to the depth tackle, Los Angeles placed left guard Steve Avila (knee) on injured reserve Wednesday. With starting left tackle Alaric Jackson (suspension) also set to miss Sunday's game against the Cardinals, the Rams will have to get by with a patchwork offensive line.