Dan Haren an upside buy for Nats 

December, 4, 2012

The Nationals' reported agreement with Dan Haren for one year and $13 million, a deal pending a physical, according to sources, is probably an all-or-nothing gamble: Either he'll be healthy enough to pitch like the pre-2012 version of himself and this deal will be a huge steal for the Nats, or the same hip problem that destroyed his market this offseason will flare up and give the Nats little or no return on their investment. It's reminiscent of the A's deal with Ben Sheets in 2010, where they gave him $10 million on a one-year deal to see whether he could stay healthy; Sheets couldn't, and the A's got just 119 innings of replacement-level pitching from him. Haren could offer more.

Keith Law

ESPN Senior Writer