http://dailysnark.com/report-cardina...-wrist-injury/

The team will determine in their star RB will need surgery within 24-48 hours from now, a decision that could be the difference between multiple weeks and 3-4 months, although he’s expected to miss 12 weeeks.

According to NFL Network’s Ian Rapoport, the injured reserve is a possibility for Johnson, which would force him to miss at least eight weeks, per league rules.