The Las Vegas Raiders have been mostly unscathed for much of the offseason. Christian Wilkins was the only major injury red flag, but he was recently let go. The Raiders decided to hold a mock game at Allegiant Stadium to give fans a closer look at the new team.

The safety had his lower right leg rolled up on during the first half of a mock game at Allegiant Stadium on Saturday and is feared to have suffered a major injury.

On Sunday, ESPN's Adam Schefter reported the Las Vegas Raiders safety suffered a broken fibula during the team's Saturday practice at Allegiant Stadium. Johnson had to be carted off the field after he collided with defensive end Maxx Crosby while trying to tackle running back Raheem Mostert.