Jeff Locke has been named as the Pirates' starting pitcher for Monday's series opener against the Astros. Initially, there was speculation that he would start on Saturday, with A.J. Burnett getting pushed back until Sunday. However, with Jeff Karstens set to miss at least one start, the Pirates were forced to re-arrange their rotation. The owner of a career 2.48 ERA and 131/43 K/BB ratio over 141 minor league innings, Locke could be worth a gamble as a matchup play.