Nationals and Pirates' lineups for tonight's matchup in PNC Park

<p>The Washington Nationals are in Pittsburgh tonight for the first game of their four-game set with the Pirates in PNC Park. The Nats are coming off a loss to the Cincinnati Reds and a 3-3 homestand in the nation's capital.

<p>The Pirates dropped two of three to the New York Yankees this past weekend and split a two-game home set with the Baltimore Orioles this week, leaving them 19-26 so far this season. After 45 games last season, the eventual NL Wild Card winners were 27-18 on the way to a 94-68 finish. The Pirates took four of seven from the Nationals in 2013, though they dropped two of the three games with the Nats at home in PNC.

<p>Pittsburgh's hitters will be getting their first look at 25-year-old Nats' starter Blake Treinen tonight when he makes his second start of the season. Treinen pitched out of the bullpen earlier this year and made a spot start against the LA Dodgers two weeks back.

<p>The Nationals will face Pirates' right-hander Edinson Volquez, the former Rangers, Reds, Padres and Dodgers' starter who signed a 1-year/$5M deal with Pittsburgh last December. In four career starts against the Nats before tonight, the veteran of 10 major league seasons in (1-2) with a 6.64 ERA, 12 walks (5.31 BB/9) and 21 Ks (9.30 K/9) in 20 1/3 innings pitched over which he's held Nationals' hitters to a combined .240/.352/.400 line.

<p>• Here are the Nationals and Pirates' lineups for the first game of four in Pittsburgh:

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<h3>Today's Lineups</h3>

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<th align="left">WASHINGTON NATIONALS</th>

<th align="left">PITTSBURGH PIRATES</th>

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<tr><td class="td-last td-name">Denard Span - CF</td><td class="td-first td-name">Josh Harrison - RF</td></tr><tr><td class="td-last td-name">Anthony Rendon - 3B</td><td class="td-first td-name">Neil Walker - 2B</td></tr><tr><td class="td-last td-name">Jayson Werth - RF</td><td class="td-first td-name">A. McCutchen - CF</td></tr><tr><td class="td-last td-name">Wilson Ramos - C</td><td class="td-first td-name">Pedro Alvarez - 3B</td></tr><tr><td class="td-last td-name">Ian Desmond - SS</td><td class="td-first td-name">Starling Marte - LF</td></tr><tr><td class="td-last td-name">Tyler Moore - 1B</td><td class="td-first td-name">Ike Davis - 1B</td></tr><tr><td class="td-last td-name">Danny Espinosa - 2B</td><td class="td-first td-name">Jordy Mercer - SS</td></tr><tr><td class="td-last td-name">Nate McLouth - LF</td><td class="td-first td-name">Chris Stewart - C</td></tr><tr><td class="td-last td-name">Blake Treinen - RHP</td><td class="td-first td-name">Edinson Volquez - RHP</td></tr></tbody>

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<p>Game Time: 7:05 PM EDT from PNC.