09/13/12 6:46 PM ET
Porter interviews for Astros managerial job
By Bill Ladson / MLB.com
Porter flew to Houston after the Nationals completed a three-game series with the Mets.
The Astros have been looking for a permanent manager ever since they dismissed Brad Mills last month. Tony DeFrancesco is currently the interim manager.
It's not known how the interview went, but Porter is considered a highly-respected baseball man in the Nationals organization. In fact, some people in the organization believe that he will be Davey Johnson's successor after Johnson retires from baseball.
Besides being a third-base coach, Porter is an outfield coach and helps Johnson run the office.
Starting next week, the Nationals will have their scouts look at opposing teams they could possibly face in the postseason, according to a baseball source.
The magic number for the Nationals to clinch a playoff spot is five. They are currently 8 1/2 games ahead of the Braves in the National League East.
Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the time. He also could be found on Twitter @WashingNats. This story was not subject to the approval of Major League Baseball or its clubs.