Patrick Mahomes received a "best-case scenario" diagnosis after dislocating his right kneecap.
The MRI Mahomes underwent showed no damage beyond the dislocation.
The Kansas City Chiefs are working through second opinions.
Mahomes suffered the injury during a quarterback sneak on fourth down. As medical staff attended to him on the field, it appeared Mahomes' knee was straightened and popped back into place.
Albert Breer of Sports Illustrated reports Mahomes could be back by Week 11, which is in one month.