Walker (groin) was listed as a limited participant at the Ravens' walkthrough practice Thursday.
Walker continues to nurse a groin injury ahead of Week 1, logging his second straight limited session Thursday. The wide receiver will have one more chance to notch a full practice Friday before the team takes on Indianapolis in the regular-season opener Sunday. If Walker is unavailable in Week 1, rookie wideout Ja'Kobi Lane could see an uptick in opportunities in his regular-season debut.