On the first drive of the preseason opener, Raiders rookie cornerback Isaiah Johnson exited after an inadvertent knee bashed him in the head. He was helped off the field, and Jerry McDonald of the Oakland Tribune speculates that it’s due to a concussion.
Michael Gehklen of the Las Vegas Review-Journal confirmed that Johnson has been diagnosed with a concussion. According to Health Line, a concussion, depending on its severity, can take seven to 10 days to recover fully.
The Raiders are playing the Los Angeles Rams, who are also starting their 2019 preseason tonight. Johnson took the head blow from fellow Raiders middle linebacker Marquel Lee.
Johnson was a fourth-round pick in this past April’s NFL Draft. He started as a receiver for the Houston Cougars before eventually switching positions to corner for his last two years. The 6-foot-4, 203-pounder racked up 115 tackles and four interceptions in his last two seasons.