From Mike McCarthy's Sept. 13 press conference
"Ryan Grant also had a significant ankle injury. We’re still in the process of gathering all of the information. I know Ryan will not be available this week against Buffalo. I really do not have a timetable because we’re still doing more testing."
Justin Harrell suffered an ACL injury. He will be placed on IR. Justin will be lost for the season.
This is a big hit for owners who waited on RB and took Grant as a lower-end RB1 option. Brandon Jackson is the Packer's RB2 and filled in nicely against Philly Sunday with 18 carries for 63 yards. It looks like he'll get a nice number of touches against Buffalo next week, who will already be missing LB Paul Posluszny.