It didn't look good at all. Cobb needed assistance to the sidelines from two trainers and couldn't put much weight on it. While it's good news that he didn't suffer a season-ending injury, the Packers will be without their main slot guy for a bit.
Jarrett Boykin took over in the slot and saw six targets in that role. The bad news is that he caught just one of those balls.
Fantasy impact: Obviously, fantasy owners are in a really bad spot here since eight weeks is basically the rest of the fantasy regular season. The Packers already had their bye, so that's not going to help him minimizing his days on the shelf. If you don't own Cobb and you're sitting pretty in the standings, he's a decent target in the trade market. Boykin isn't worth picking up in most leagues, and Jermichael Finley, James Jones and Jordy Nelson all figure to get more targets.