Eichenberg (quadriceps) is out for Sunday's game against the Rams, Rachel Gossen of the Raiders' official site reports.
Eichenberg will miss back-to-back weeks, though his absence in Week 6 against the Steelers was due to a hamstring injury. The 6-foot-2 linebacker's next opportunity to retake the field will be in a Week 8 home matchup against the Chiefs on Sunday, Oct. 27.