Answer based on context:

The Redskins started the regular season against the Minnesota Vikings at home on September 11, in the first game of an ESPN Monday Night Football doubleheader on opening weekend. The Redskins defense allowed Minnesota quarterback Brad Johnson and the Vikings' offense to convert often on third down, and the Vikings won the game 19-16 after a failed field goal attempt by John Hall late in the fourth quarter quieted any chance of a Redskins comeback. With the loss, the Redskins were 0-1.Stats

How many points did the vikings win by?
3