Vikings head coach Kevin O'Connell announced on Friday that superstar receiver Justin Jefferson will miss some practice time during training camp with a mild left hamstring strain. Exactly how much time he'll miss is unclear,

Minnesota coach Kevin O'Connell said Friday that receiver Justin Jefferson is dealing with a mild hamstring strain and will be held out of practice. Jefferson will be re-evaluated next week, but he should be fine for Week 1.

One of the best wide receivers in the NFL could miss some time during training camp. Minnesota Vikings star Justin Jefferson will undergo an MRI and be re-evaluated next week due to a mild right hamstring strain, head coach Kevin O'Connell announced Friday. The team held Jefferson out of practice Friday due to the injury.