Davis was activated from the reserve/COVID-19 list Friday afternoon.
The Bills also activated WR Cole Beasley and DTs Vernon Butler and Star Lotulelei. It's unclear if any of them will play in Saturday's preseason game against Green Bay, but all four should be fine for Week 1 versus the Steelers. Davis likely will open the year as Buffalo's No. 4 wide receiver, but he's in an offense that uses four-wide sets more than most, rotating in behind three starters who are 27, 32 and 34 years old.