Since the start of the 2014 season, Robert Woods has averaged 7.33 targets per game when Sammy Watkins is on the sidelines, and he has seen 24 targets in 3 games without Watkins this year.
Woods continues to dominate the team's wide receiver snaps -- playing 90% of the Bills' offensive snaps over the last three games while no other receiver on the team has played even 80% -- and he has accounted for 28.6% of the team's passing targets in that span.
As long as Watkins remains sidelined, Woods should continue to operate as the team's number-one option in the passing game, and that volume makes him a viable fantasy option.