This walk-off is a not a goodbye, but Ryan Zimmerman announces his retirement as a player today!
Washington Nationals great Ryan Zimmerman retires from MLB - ESPN
Washington Nationals' first-ever draft pick Ryan Zimmerman announces retirement
From the very beginning': Nationals retire Zimmerman's 11
Nationals' Ryan Zimmerman now an investor, co-owner of restaurant near Nationals Park
Ryan Zimmerman retires as one of precious few franchise-defining players - Sports Illustrated
Ryan Zimmerman became the face of the franchise. This is how he started. - The Washington Post
Ryan Zimmerman - Wikipedia
Nationals retire Zimmerman's No. 11