Las Vegas Raiders safety Lonnie Johnson Jr. broke his right leg during a mock game on Saturday, according to a person with knowledge of the injury.

T he Las Vegas Raiders suffered a significant injury during Sunday's training camp practice when safety Lonnie Johnson Jr. broke his fibula after colliding with teammate Maxx Crosby, according to ESPN. Johnson will get an MRI to determine if there is any additional damage.

Raiders safety Lonnie Johnson Jr. has suffered a broken fibula and will get an MRI to determine if there is additional damage, a source told ESPN.