Williams (ribs, questionable) was a full participant in Friday's practice and is expected to be available for Sunday's season opener against the Ravens.
Williams practiced in full the past three days, so the ailment doesn't appear likely to hinder him going into this weekend. Rather, a Bills backfield that already includes starter LeSean McCoy, Mike Gillislee and Reggie Bush could impact Williams' status against the Ravens. If Williams is active for Week 1, expectations for the rookie's level of involvement should probably be low.