Sankey underwent surgery on his torn ACL last week and has begun rehab, Chris Tomasson of the St. Paul Pioneer Press reports.
Sankey was waived and reverted to injured reserve after tearing his ACL in the Vikings' preseason opener. With his rehab already underway, Sankey should be able to recover in time for the start of the 2018 season. However, a serious injury like this could put his NFL future in serious jeopardy.