London has been ruled out for Sunday's game against Seattle, Tori McElhaney of the Falcons' official site reports.
London hasn't played or practiced since suffering a PCL sprain Week 11. Falcons coach Raheem Morris said Monday that the wideout had a chance to return for Week 14, but London never even made it back to practice and now faces a short turnaround with Atlanta playing on Thursday in Week 15.