Vikings Receive Alarming Justin Jefferson Injury News originally appeared on Athlon Sports. The Minnesota Vikings are handing the keys to their offense over to second-year quarterback J.J. McCarthy, and if he’s to be successful, he’s going to need a healthy complement of weapons.

Minnesota Vikings star wideout Justin Jefferson suffered what is being described as a mild hamstring strain in training camp, and will be held out of practice, the team announced on Friday. He will be re-evaluated next week.

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,