Here are the lineups for Saturday night's 7:05 (Eastern) game between the Pirates and Astros, in which new Bucs pitcher Wandy Rodriguez will make his Pirates debut. The Pirates acquired Rodriguez earlier in the week for prospects Robbie Grossman, Rudy Owens and Colton Cain.
Pirates:
Starling Marte LF
Alex Presley RF
Andrew McCutchen CF
Garrett Jones 1B
Neil Walker 2B
Pedro Alvarez 3B
Rod Barajas C
Clint Barmes SS
Wandy Rodriguez P
Astros:
Jose Altuve 2B
Matt Downs 1B
Chris Johnson 3B
J.D. Martinez LF
Justin Maxwell CF
Ben Francisco RF
Brian Bixler SS
Carlos Corporan C
Armando Galarraga P
Galarraga is making his 2012 MLB debut and his Astros debut, taking Rodriguez' place in the rotation.
Also, the Pirates have claimed former Pirates first baseman Steve Pearce, although he won't be with the team until Sunday.
You can read a good scouting report on Rodriguez here.
For more on the Pirates, check out Bucs Dugout. For more on the Astros, there's Crawfish Boxes.