PITTSBURGH (KDKA/AP) – The Pirates have agreed to terms with left-handed pitcher Scott Olsen, according to ESPN’s Jerry Crasnik.

Olsen signed a one-year deal with a club option for 2012.

In the first year, Olsen will have a base salary of $500k with performance-based incentives that could raise his salary another $3 million. The 2012 club option is for $4 million.

Olsen, who pitched the last two years for the Washington Nationals posted a 5.56 ERA, 5.9 K/9, 3.0 BB/9, 1.1 HR/9, and 46.5% ground ball rate in 81 innings 2010.

Along with Olsen, the Pirates signed former San Diego Padres right-hander Kevin Correia at the Baseball Winter Meetings this week.

The Pirates needed to add some arms to the rotation after they traded Zach Duke to the Arizona Diamondbacks. Olsen and Correia will join Ross Ohlendorf and James McDonald in the Pirates starting rotation.

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