Earlier this morning WMATA put out an alert that customers should expect delays in both directions on the Green Line due to a report of an unauthorized person on the track bed at Southern Ave. Now the Examiner reports that the person was actually a man in a wheelchair who had fallen onto the tracks. It’s not totally clear how the man fell, but he reportedly sustained head injuries and has since been transported to a local hospital. It’s certainly been a rough week for Metro. Just yesterday, a man died after he jumped in front of a Red Line train at Forest Glen, and that was only two days after Metro reopened the Red Line for the first time last week’s crash, which killed nine people.