UPDATE: According to The Washington Post, Harrington will be in Washington for his physical on Tuesday and he might sign the minimum contract later in the day. A source tells the newspaper that Harrington is "pumped" about signing with the Wizards.
The addition of Harrington means Chris Singleton and Jan Vesely have been put on notice. Both players could find themselves stuck to the bench for most of 2013-14 if they don't produce in the preseason. There is a very good chance both are now on the trade block and if they can't be moved the Wizards will probably decline their 2014-15 options.