The knee injury Bowers is recovering from "is not overly serious," and it's "possible" he will return in Week 2, Dan Graziano of ESPN.com reports.
Head coach Klint Kubiak said Monday that Bowers is considered day-to-day, and the latest report reaffirms an earlier one that indicated Bowers could miss only "a game or two." A better estimate of Bowers' availability for Week 2 will likely be able to be made after the Raiders release their first injury report of the week Wednesday.