Haren signs contract extension with Diamondbacks

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PHOENIX (AP) -- Arizona right-hander Dan Haren came to terms with the Arizona Diamondbacks on a 4-year contract extension Tuesday.

Haren was acquired in an off-season trade with the Oakland Athletics.

He's 12-5 with a 2.75 earned run average, fourth-best in the National League. He is fourth in the NL in strikeouts with 142.

The new deal runs through 2012, with a club option for 2013.