Ravens CB Humphrey returns from COVID quarantine
American football tries to contain growing Covid-19 crisis
John Harbaugh Confident In Ravens' Remaining Cornerbacks Following Marlon Humphrey Injury - PressBox
Marlon Humphrey has COVID-19 - Baltimore Beatdown
A Rapid Covid Test That's Also Accurate? The NFL Says It Has One - WSJ
Marlon Humphrey tests positive for COVID-19, seven Ravens teammates also placed on reserve/COVID-19 list
On heels of playing Steelers, Ravens CB Marlon Humphrey tests positive for covid-19
Ravens QB Lamar Jackson tests positive for COVID-19; game vs. Steelers unlikely to be played
Marlon Humphrey says he has coronavirus as four NFL teams deal with positive tests - The Washington Post