Cook (knee) said Monday that he has started jogging but remains without a firm timetable to return to full football activities, Kevin Seifert of ESPN.com reports.
The running back is a little over three months removed from surgery to repair a torn ACL in his left knee, so his lack of extensive activity to date shouldn't be viewed as a concern at this stage of his recovery. Assuming Cook endures no significant snags during the rehab process, he should be at or near full strength for the beginning of training camp in the summer, though the Vikings will almost certainly monitor his workload carefully during practices. While Latavious Murray and Jerick McKinnon proved to be an effective backfield tandem once the rookie was shut down for the season in Week 5, a healthy Cook profiles as the clear No. 1 back for Minnesota heading into the 2018 campaign.