The Minnesota Vikings superstar wide receiver Justin Jefferson fell to a hamstring injury during training camp on Friday.

Jefferson appeared to suffer the injury at training camp practice on Thursday. He'll be reevaluated next week.

On Friday, the Minnesota Vikings announced a concerning training-camp injury for Justin Jefferson, which will sideline the star wide receiver during the preseason.

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 hamstring strain, head coach Kevin O'Connell announced Friday. The team held Jefferson out of practice Friday due to the injury.

The first practice of training camp was over and most of the Vikings players had retreated to the locker room, except for a few stragglers who wanted to get in more individual work. Naturally, the fifth-oldest and second-longest-tenured player on the roster was among the last to leave,

Here are more takeaways from Day 2 of training camp: There were some ups and downs for McCarthy during practice. He had a few really nice throws in 7-on-7 drills and 11-on-11 drills. His best throw was a bullet to receiver Jordan Addison near the sideline as they continue to development an impressive rapport.