As predicted, third-rounder Ty Montgomery appears to be the guy.
On the first snap of Tuesday's practice, the offense lined up in a three-receiver set with Randall Cobb wedged in the slot between Davante Adams and Montgomery out wide, according to ESPN.com's Rob Demovsky.
That lines up with what the Milwaukee Journal Sentinel projected Monday after the team announced that Nelson will miss the remainder of the 2015 season with a significant right knee injury.
Future practice time and game snaps will sort this out, but Montgomery holds the early lead over Jeff Janis, the second-year target still seen as a project despite his Nelson-like measurements. (Nelson is listed at 6-foot-3 and 217 pounds, while Janis measures in at 6-foot-3 and 219 pounds.) Both Adams' and Montgomery's values are climbing in fantasy drafts, especially Adams who is all the way up to 18th on our WR list.